#1F1874#1F1874

#1F1874 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.5% C 0.148 H 275.7°. Best body text is #FFFFFF at 14.57:1 contrast (WCAG AA passes).

Color values

HEX	#1F1874
RGB	rgb(31, 24, 116)
HSL	hsl(245, 66%, 27%)
HSV	hsv(245, 79%, 45%)
CMYK	cmyk(73.3%, 79.3%, 0%, 54.5%)
CIE-LAB	lab(16.53, 34.33, -51.04)
CIE-LCH	lch(16.53, 61.51, 303.92°)
OKLab	oklab(29.53% 0.0147 -0.1476)
OKLCH	oklch(29.53% 0.148 275.7)
XYZ	xyz(4.0431, 2.2051, 16.7322)
Luminance	0.0221 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1874 #6D7418

analogous

#183F74 #1F1874 #4D1874

triadic

#1F1874 #741F18 #18741F

tetradic

#1F1874 #74183F #6D7418 #18744D

square

#1F1874 #74183F #6D7418 #18744D

split-complementary

#1F1874 #744D18 #3F7418

monochromatic

#070519 #110E41 #1F1874 #2D22A7 #3E32D5

Accessibility & contrast

On white

14.57

#1F1874 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#1F1874 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1874

14.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1874	#FFFFFF	#000000	##FFFFFF
##1F1874	1.00	14.57	1.44	14.57
#FFFFFF	14.57	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D77

Deuteranopia (green-blind)

#002572

Tritanopia (blue-blind)

#003345

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1f1874;
/* rgb */ color: rgb(31, 24, 116);
/* oklch */ color: oklch(29.5% 0.148 275.7);

Tailwind

colors: {
  custom: {
    50: '#69579d',
    500: '#1f1874',
    950: '#000000',
  },
}

SCSS

$custom: #1f1874;
$custom-light: #69579d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1874",
  "rgb": {
    "r": 31,
    "g": 24,
    "b": 116
  },
  "hsl": {
    "h": 244.565,
    "s": 65.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.29534,
    "c": 0.1483,
    "h": 275.7
  },
  "luminance": 0.02206
}

Semantic roles & 50–950 ramp

primary

#1F1874

secondary

#A1A93F

accent

#E93FDC

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1F1874

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

Preview Lab → · Contrast checker → · Palette generator →