#1F4E72#1F4E72

#1F4E72 is a dark, moderate cyan. Relative luminance 0.070; OKLCH L 40.9% C 0.079 H 244.7°. Best body text is #FFFFFF at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E72
RGB	rgb(31, 78, 114)
HSL	hsl(206, 57%, 28%)
HSV	hsv(206, 73%, 45%)
CMYK	cmyk(72.8%, 31.6%, 0%, 55.3%)
CIE-LAB	lab(31.70, -2.99, -25.29)
CIE-LCH	lch(31.70, 25.47, 263.26°)
OKLab	oklab(40.95% -0.0338 -0.0715)
OKLCH	oklch(40.95% 0.079 244.7)
XYZ	xyz(6.3256, 6.9543, 16.9253)
Luminance	0.0696 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E72 #72431F

analogous

#1F726C #1F4E72 #1F2472

triadic

#1F4E72 #721F4E #4E721F

tetradic

#1F4E72 #6C1F72 #72431F #24721F

square

#1F4E72 #6C1F72 #72431F #24721F

split-complementary

#1F4E72 #721F24 #726C1F

monochromatic

#071018 #122D42 #1F4E72 #2C6FA2 #408FCB

Accessibility & contrast

On white

8.78

#1F4E72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1F4E72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E72

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E72	#FFFFFF	#000000	##FFFFFF
##1F4E72	1.00	8.78	2.39	8.78
#FFFFFF	8.78	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E4F74

Deuteranopia (green-blind)

#324771

Tritanopia (blue-blind)

#00575B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1f4e72;
/* rgb */ color: rgb(31, 78, 114);
/* oklch */ color: oklch(40.9% 0.079 244.7);

Tailwind

colors: {
  custom: {
    50: '#667f9a',
    500: '#1f4e72',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e72;
$custom-light: #667f9a;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e72",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 114
  },
  "hsl": {
    "h": 206.024,
    "s": 57.241,
    "l": 28.431
  },
  "oklch": {
    "l": 0.40949,
    "c": 0.07908,
    "h": 244.7
  },
  "luminance": 0.06955
}

Semantic roles & 50–950 ramp

primary

#1F4E72

secondary

#A67047

accent

#8A47E0

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1F4E72

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →