#1F4E80#1F4E80

#1F4E80 is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 41.8% C 0.098 H 252.5°. Best body text is #FFFFFF at 8.54:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E80
RGB	rgb(31, 78, 128)
HSL	hsl(211, 61%, 31%)
HSV	hsv(211, 76%, 50%)
CMYK	cmyk(75.8%, 39.1%, 0%, 49.8%)
CIE-LAB	lab(32.48, 2.46, -32.79)
CIE-LCH	lch(32.48, 32.88, 274.29°)
OKLab	oklab(41.81% -0.0295 -0.0934)
OKLCH	oklch(41.81% 0.098 252.5)
XYZ	xyz(7.1843, 7.2978, 21.4479)
Luminance	0.0730 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E80 #80511F

analogous

#1F7E80 #1F4E80 #201F80

triadic

#1F4E80 #801F4E #4E801F

tetradic

#1F4E80 #801F7E #80511F #1F8020

square

#1F4E80 #801F7E #80511F #1F8020

split-complementary

#1F4E80 #80201F #7E801F

monochromatic

#07121D #13304F #1F4E80 #2B6CB1 #478BD2

Accessibility & contrast

On white

8.54

#1F4E80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#1F4E80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E80

8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E80	#FFFFFF	#000000	##FFFFFF
##1F4E80	1.00	8.54	2.46	8.54
#FFFFFF	8.54	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375182

Deuteranopia (green-blind)

#28487F

Tritanopia (blue-blind)

#005A61

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1f4e80;
/* rgb */ color: rgb(31, 78, 128);
/* oklch */ color: oklch(41.8% 0.098 252.5);

Tailwind

colors: {
  custom: {
    50: '#697fa5',
    500: '#1f4e80',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e80;
$custom-light: #697fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e80",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 128
  },
  "hsl": {
    "h": 210.928,
    "s": 61.006,
    "l": 31.176
  },
  "oklch": {
    "l": 0.41809,
    "c": 0.09796,
    "h": 252.5
  },
  "luminance": 0.07299
}

Semantic roles & 50–950 ramp

primary

#1F4E80

secondary

#B37F48

accent

#9644E4

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1F4E80

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

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