1781B5

COLOR
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Youlan

Chinese Traditional Colors / youlan
sRGB Model ? COPY
R 23
G 129
B 181
HSL Model ? COPY
H 200°
S 77%
L 40%
CMYK Print ? COPY
C 87
M 29
Y 0
K 29
CIE-Lab ? COPY
L 50.94
a -9.37
b -35.25
CIE-XYZ ? COPY
X 16.54
Y 19.22
Z 46.55
OKLCH (Next-Gen) ? COPY
L 57.25%
C 0.119
H 237.2
HSB Model ? COPY
H 200°
S 87%
B 71%
HWB Model ? COPY
H 200°
W 9%
B 29%
CIE-LUV ? COPY
L 50.94
u -32.42
v -52.45

WCAG Accessibility Score

Sample Text
4.34
AA: FAIL / AAA: FAIL
Sample Text
4.84
AA: PASS / AAA: FAIL

Vision Simulation

Protanopia #4445a8
Deuteranopia #3e36a5
Tritanopia #1c9e9c
Achromatopsia #676767

TINTS

TONES

Physical Match

Closest Standard Match

18-4440 TPG

SET: 潘通时尚家居室内装潢通用色卡
DELTA E: 0.26

HARMONIES

Complementary
Analogous
Split Complementary
Triadic
Tetradic
Monochromatic

Smart Gradients

COPY CSS
Basic Light
COPY CSS
Deep Gravity
COPY CSS
Aurora Flow
COPY CSS
Cyber Clash
COPY CSS
Soft Mist

Developer Handoff

CSS Variables 
:root {
  --youlan: #1781B5;
}
Tailwind Config 
colors: {
  'youlan': '#1781B5',
}
SCSS / Sass 
$youlan: #1781B5;
Design Token 
{
    "name": "Youlan",
    "value": "#1781B5"
}

UI Application / Simulation

Real-time UI Preview

View the actual rendering effect of this color in dashboards, mobile apps, chat interfaces, calendars, etc.
Click to open full-screen immersive preview.

Open UI Kit

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