#1F4264#1F4264

#1F4264 is a dark, moderate cyan. Relative luminance 0.051; OKLCH L 37.0% C 0.072 H 249.7°. Best body text is #FFFFFF at 10.39:1 contrast (WCAG AA passes).

Color values

HEX	#1F4264
RGB	rgb(31, 66, 100)
HSL	hsl(210, 53%, 26%)
HSV	hsv(210, 69%, 39%)
CMYK	cmyk(69%, 34%, 0%, 60.8%)
CIE-LAB	lab(27.04, -0.53, -23.74)
CIE-LCH	lch(27.04, 23.74, 268.71°)
OKLab	oklab(37.03% -0.0248 -0.0671)
OKLCH	oklch(37.03% 0.072 249.7)
XYZ	xyz(4.8127, 5.1074, 12.7863)
Luminance	0.0511 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4264 #64411F

analogous

#1F6463 #1F4264 #1F1F64

triadic

#1F4264 #641F42 #42641F

tetradic

#1F4264 #631F64 #64411F #1F641F

square

#1F4264 #631F64 #64411F #1F641F

split-complementary

#1F4264 #641F1F #64631F

monochromatic

#070F17 #112335 #1F4264 #2D6193 #3C80C1

Accessibility & contrast

On white

10.39

#1F4264 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#1F4264 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4264

10.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4264	#FFFFFF	#000000	##FFFFFF
##1F4264	1.00	10.39	2.02	10.39
#FFFFFF	10.39	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#334465

Deuteranopia (green-blind)

#2A3D63

Tritanopia (blue-blind)

#004A4E

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1f4264;
/* rgb */ color: rgb(31, 66, 100);
/* oklch */ color: oklch(37.0% 0.072 249.7);

Tailwind

colors: {
  custom: {
    50: '#637690',
    500: '#1f4264',
    950: '#000000',
  },
}

SCSS

$custom: #1f4264;
$custom-light: #637690;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4264",
  "rgb": {
    "r": 31,
    "g": 66,
    "b": 100
  },
  "hsl": {
    "h": 209.565,
    "s": 52.672,
    "l": 25.686
  },
  "oklch": {
    "l": 0.37031,
    "c": 0.07155,
    "h": 249.7
  },
  "luminance": 0.05108
}

Semantic roles & 50–950 ramp

primary

#1F4264

secondary

#986F46

accent

#934CDC

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#06080C

muted

#7A7B7D

Preview Lab

Preview with #1F4264

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

Preview Lab → · Contrast checker → · Palette generator →