#1F4880#1F4880

#1F4880 is a dark, moderate cyan. Relative luminance 0.065; OKLCH L 40.4% C 0.105 H 257.0°. Best body text is #FFFFFF at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#1F4880
RGB	rgb(31, 72, 128)
HSL	hsl(215, 61%, 31%)
HSV	hsv(215, 76%, 50%)
CMYK	cmyk(75.8%, 43.8%, 0%, 49.8%)
CIE-LAB	lab(30.60, 6.47, -35.78)
CIE-LCH	lch(30.60, 36.36, 280.25°)
OKLab	oklab(40.35% -0.0236 -0.1023)
OKLCH	oklch(40.35% 0.105 257)
XYZ	xyz(6.7773, 6.4838, 21.3122)
Luminance	0.0649 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4880 #80571F

analogous

#1F7880 #1F4880 #261F80

triadic

#1F4880 #801F48 #48801F

tetradic

#1F4880 #801F78 #80571F #1F8026

square

#1F4880 #801F78 #80571F #1F8026

split-complementary

#1F4880 #80261F #78801F

monochromatic

#07111D #132C4F #1F4880 #2B64B1 #4782D2

Accessibility & contrast

On white

9.14

#1F4880 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#1F4880 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4880

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4880	#FFFFFF	#000000	##FFFFFF
##1F4880	1.00	9.14	2.30	9.14
#FFFFFF	9.14	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D4D82

Deuteranopia (green-blind)

#1C447F

Tritanopia (blue-blind)

#00555D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1f4880;
/* rgb */ color: rgb(31, 72, 128);
/* oklch */ color: oklch(40.4% 0.105 257.0);

Tailwind

colors: {
  custom: {
    50: '#697aa5',
    500: '#1f4880',
    950: '#000000',
  },
}

SCSS

$custom: #1f4880;
$custom-light: #697aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4880",
  "rgb": {
    "r": 31,
    "g": 72,
    "b": 128
  },
  "hsl": {
    "h": 214.639,
    "s": 61.006,
    "l": 31.176
  },
  "oklch": {
    "l": 0.4035,
    "c": 0.10496,
    "h": 257
  },
  "luminance": 0.06485
}

Semantic roles & 50–950 ramp

primary

#1F4880

secondary

#B38648

accent

#A044E4

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1F4880

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

Preview Lab → · Contrast checker → · Palette generator →