#1F4E83#1F4E83

#1F4E83 is a dark, moderate cyan. Relative luminance 0.074; OKLCH L 42.0% C 0.102 H 253.7°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#1F4E83
RGB	rgb(31, 78, 131)
HSL	hsl(212, 62%, 32%)
HSV	hsv(212, 76%, 51%)
CMYK	cmyk(76.3%, 40.5%, 0%, 48.6%)
CIE-LAB	lab(32.65, 3.65, -34.36)
CIE-LCH	lch(32.65, 34.56, 276.06°)
OKLab	oklab(42% -0.0287 -0.098)
OKLCH	oklch(42% 0.102 253.7)
XYZ	xyz(7.3847, 7.3779, 22.5032)
Luminance	0.0738 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4E83 #83541F

analogous

#1F8083 #1F4E83 #221F83

triadic

#1F4E83 #831F4E #4E831F

tetradic

#1F4E83 #831F80 #83541F #1F8322

square

#1F4E83 #831F80 #83541F #1F8322

split-complementary

#1F4E83 #83221F #80831F

monochromatic

#081320 #133152 #1F4E83 #2B6BB4 #498AD4

Accessibility & contrast

On white

8.48

#1F4E83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#1F4E83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4E83

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4E83	#FFFFFF	#000000	##FFFFFF
##1F4E83	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355285

Deuteranopia (green-blind)

#254982

Tritanopia (blue-blind)

#005A62

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f4e83;
/* rgb */ color: rgb(31, 78, 131);
/* oklch */ color: oklch(42.0% 0.102 253.7);

Tailwind

colors: {
  custom: {
    50: '#697fa7',
    500: '#1f4e83',
    950: '#000000',
  },
}

SCSS

$custom: #1f4e83;
$custom-light: #697fa7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4e83",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 131
  },
  "hsl": {
    "h": 211.8,
    "s": 61.728,
    "l": 31.765
  },
  "oklch": {
    "l": 0.42004,
    "c": 0.10214,
    "h": 253.7
  },
  "luminance": 0.07379
}

Semantic roles & 50–950 ramp

primary

#1F4E83

secondary

#B68248

accent

#9943E5

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1F4E83

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

Preview Lab → · Contrast checker → · Palette generator →