#1F4263#1F4263

#1F4263 is a dark, moderate cyan. Relative luminance 0.051; OKLCH L 37.0% C 0.070 H 249.0°. Best body text is #FFFFFF at 10.41:1 contrast (WCAG AA passes).

Color values

HEX	#1F4263
RGB	rgb(31, 66, 99)
HSL	hsl(209, 52%, 25%)
HSV	hsv(209, 69%, 39%)
CMYK	cmyk(68.7%, 33.3%, 0%, 61.2%)
CIE-LAB	lab(26.98, -0.92, -23.18)
CIE-LCH	lch(26.98, 23.20, 267.73°)
OKLab	oklab(36.97% -0.0251 -0.0655)
OKLCH	oklch(36.97% 0.07 249)
XYZ	xyz(4.7646, 5.0881, 12.5330)
Luminance	0.0509 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4263 #63401F

analogous

#1F6362 #1F4263 #1F2063

triadic

#1F4263 #631F42 #42631F

tetradic

#1F4263 #621F63 #63401F #20631F

square

#1F4263 #621F63 #63401F #20631F

split-complementary

#1F4263 #631F20 #63621F

monochromatic

#071017 #102334 #1F4263 #2E6192 #3C80C0

Accessibility & contrast

On white

10.41

#1F4263 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#1F4263 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4263

10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4263	#FFFFFF	#000000	##FFFFFF
##1F4263	1.00	10.41	2.02	10.41
#FFFFFF	10.41	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#344364

Deuteranopia (green-blind)

#2A3D62

Tritanopia (blue-blind)

#004A4E

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1f4263;
/* rgb */ color: rgb(31, 66, 99);
/* oklch */ color: oklch(37.0% 0.070 249.0);

Tailwind

colors: {
  custom: {
    50: '#63768f',
    500: '#1f4263',
    950: '#000000',
  },
}

SCSS

$custom: #1f4263;
$custom-light: #63768f;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4263",
  "rgb": {
    "r": 31,
    "g": 66,
    "b": 99
  },
  "hsl": {
    "h": 209.118,
    "s": 52.308,
    "l": 25.49
  },
  "oklch": {
    "l": 0.36971,
    "c": 0.07015,
    "h": 249
  },
  "luminance": 0.05089
}

Semantic roles & 50–950 ramp

primary

#1F4263

secondary

#986E46

accent

#924CDC

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#06080C

muted

#7A7B7D

Preview Lab

Preview with #1F4263

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

Preview Lab → · Contrast checker → · Palette generator →