#1F4C8A#1F4C8A

#1F4C8A is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 42.0% C 0.114 H 257.3°. Best body text is #FFFFFF at 8.54:1 contrast (WCAG AA passes).

Color values

HEX	#1F4C8A
RGB	rgb(31, 76, 138)
HSL	hsl(215, 63%, 33%)
HSV	hsv(215, 78%, 54%)
CMYK	cmyk(77.5%, 44.9%, 0%, 45.9%)
CIE-LAB	lab(32.47, 7.77, -38.97)
CIE-LCH	lch(32.47, 39.73, 281.27°)
OKLab	oklab(42% -0.0252 -0.1116)
OKLCH	oklch(42% 0.114 257.3)
XYZ	xyz(7.7353, 7.2943, 25.0401)
Luminance	0.0730 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4C8A #8A5D1F

analogous

#1F818A #1F4C8A #271F8A

triadic

#1F4C8A #8A1F4C #4C8A1F

tetradic

#1F4C8A #8A1F81 #8A5D1F #1F8A27

square

#1F4C8A #8A1F81 #8A5D1F #1F8A27

split-complementary

#1F4C8A #8A271F #818A1F

monochromatic

#091526 #143058 #1F4C8A #2A68BC #4C87D7

Accessibility & contrast

On white

8.54

#1F4C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#1F4C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4C8A

8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4C8A	#FFFFFF	#000000	##FFFFFF
##1F4C8A	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)

#2D528C

Deuteranopia (green-blind)

#184889

Tritanopia (blue-blind)

#005B64

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1f4c8a;
/* rgb */ color: rgb(31, 76, 138);
/* oklch */ color: oklch(42.0% 0.114 257.3);

Tailwind

colors: {
  custom: {
    50: '#6b7dac',
    500: '#1f4c8a',
    950: '#000000',
  },
}

SCSS

$custom: #1f4c8a;
$custom-light: #6b7dac;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4c8a",
  "rgb": {
    "r": 31,
    "g": 76,
    "b": 138
  },
  "hsl": {
    "h": 214.766,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.42001,
    "c": 0.11439,
    "h": 257.3
  },
  "luminance": 0.07295
}

Semantic roles & 50–950 ramp

primary

#1F4C8A

secondary

#BA8B4B

accent

#A141E6

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #1F4C8A

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

Preview Lab → · Contrast checker → · Palette generator →