#1F4271#1F4271

#1F4271 is a dark, moderate cyan. Relative luminance 0.054; OKLCH L 37.9% C 0.090 H 256.5°. Best body text is #FFFFFF at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#1F4271
RGB	rgb(31, 66, 113)
HSL	hsl(214, 57%, 28%)
HSV	hsv(214, 73%, 44%)
CMYK	cmyk(72.6%, 41.6%, 0%, 55.7%)
CIE-LAB	lab(27.79, 4.56, -30.84)
CIE-LCH	lch(27.79, 31.18, 278.41°)
OKLab	oklab(37.86% -0.021 -0.0879)
OKLCH	oklch(37.86% 0.09 256.5)
XYZ	xyz(5.4928, 5.3794, 16.3684)
Luminance	0.0538 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4271 #714E1F

analogous

#1F6B71 #1F4271 #251F71

triadic

#1F4271 #711F42 #42711F

tetradic

#1F4271 #711F6B #714E1F #1F7125

square

#1F4271 #711F6B #714E1F #1F7125

split-complementary

#1F4271 #71251F #6B711F

monochromatic

#070E18 #122641 #1F4271 #2C5EA1 #407BCB

Accessibility & contrast

On white

10.12

#1F4271 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#1F4271 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4271

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4271	#FFFFFF	#000000	##FFFFFF
##1F4271	1.00	10.12	2.08	10.12
#FFFFFF	10.12	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C4673

Deuteranopia (green-blind)

#203E70

Tritanopia (blue-blind)

#004D54

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1f4271;
/* rgb */ color: rgb(31, 66, 113);
/* oklch */ color: oklch(37.9% 0.090 256.5);

Tailwind

colors: {
  custom: {
    50: '#65769a',
    500: '#1f4271',
    950: '#000000',
  },
}

SCSS

$custom: #1f4271;
$custom-light: #65769a;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4271",
  "rgb": {
    "r": 31,
    "g": 66,
    "b": 113
  },
  "hsl": {
    "h": 214.39,
    "s": 56.944,
    "l": 28.235
  },
  "oklch": {
    "l": 0.37864,
    "c": 0.09039,
    "h": 256.5
  },
  "luminance": 0.0538
}

Semantic roles & 50–950 ramp

primary

#1F4271

secondary

#A57D47

accent

#9F48E0

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1F4271

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

Preview Lab → · Contrast checker → · Palette generator →