FF4D00

COLOR
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Vermilion

Common RGB / Normal RGB
sRGB Model ? COPY
R 255
G 77
B 0
HSL Model ? COPY
H 18°
S 100%
L 50%
CMYK Print ? COPY
C 0
M 70
Y 100
K 0
CIE-Lab ? COPY
L 58.57
a 65.05
b 69.44
CIE-XYZ ? COPY
X 43.89
Y 26.57
Z 2.81
OKLCH (Next-Gen) ? COPY
L 66.77%
C 0.224
H 37
HSB Model ? COPY
H 18°
S 100%
B 100%
HWB Model ? COPY
H 18°
W 0%
B 0%
CIE-LUV ? COPY
L 58.57
u 145.88
v 47.22

WCAG Accessibility Score

Sample Text
3.33
AA: FAIL / AAA: FAIL
Sample Text
6.31
AA: PASS / AAA: FAIL

Vision Simulation

Protanopia #b1b012
Deuteranopia #bcc917
Tritanopia #f62124
Achromatopsia #797979

TINTS

TONES

Physical Match

Closest Standard Match

Orange 021 C

SET: 潘通专色铜版色卡
DELTA E: 0.6

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 {
  --vermilion: #FF4D00;
}
Tailwind Config 
colors: {
  'vermilion': '#FF4D00',
}
SCSS / Sass 
$vermilion: #FF4D00;
Design Token 
{
    "name": "Vermilion",
    "value": "#FF4D00"
}

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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