#1F4F74#1F4F74

#1F4F74 is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.3% C 0.081 H 245.0°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#1F4F74
RGB	rgb(31, 79, 116)
HSL	hsl(206, 58%, 29%)
HSV	hsv(206, 73%, 45%)
CMYK	cmyk(73.3%, 31.9%, 0%, 54.5%)
CIE-LAB	lab(32.13, -2.87, -25.87)
CIE-LCH	lch(32.13, 26.03, 263.68°)
OKLab	oklab(41.32% -0.0342 -0.0732)
OKLCH	oklch(41.32% 0.081 245)
XYZ	xyz(6.5122, 7.1435, 17.5552)
Luminance	0.0714 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4F74 #74441F

analogous

#1F746F #1F4F74 #1F2574

triadic

#1F4F74 #741F4F #4F741F

tetradic

#1F4F74 #6F1F74 #74441F #25741F

square

#1F4F74 #6F1F74 #74441F #25741F

split-complementary

#1F4F74 #741F25 #746F1F

monochromatic

#061018 #122E44 #1F4F74 #2C70A4 #4190CC

Accessibility & contrast

On white

8.65

#1F4F74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#1F4F74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4F74

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4F74	#FFFFFF	#000000	##FFFFFF
##1F4F74	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E5076

Deuteranopia (green-blind)

#334873

Tritanopia (blue-blind)

#00585C

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1f4f74;
/* rgb */ color: rgb(31, 79, 116);
/* oklch */ color: oklch(41.3% 0.081 245.0);

Tailwind

colors: {
  custom: {
    50: '#66809c',
    500: '#1f4f74',
    950: '#000000',
  },
}

SCSS

$custom: #1f4f74;
$custom-light: #66809c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4f74",
  "rgb": {
    "r": 31,
    "g": 79,
    "b": 116
  },
  "hsl": {
    "h": 206.118,
    "s": 57.823,
    "l": 28.824
  },
  "oklch": {
    "l": 0.41321,
    "c": 0.08077,
    "h": 245
  },
  "luminance": 0.07144
}

Semantic roles & 50–950 ramp

primary

#1F4F74

secondary

#A87147

accent

#8A47E1

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1F4F74

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

Preview Lab → · Contrast checker → · Palette generator →