#1D285B#1D285B

#1D285B is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.9% C 0.092 H 270.7°. Best body text is #FFFFFF at 13.94:1 contrast (WCAG AA passes).

Color values

HEX	#1D285B
RGB	rgb(29, 40, 91)
HSL	hsl(229, 52%, 24%)
HSV	hsv(229, 68%, 36%)
CMYK	cmyk(68.1%, 56%, 0%, 64.3%)
CIE-LAB	lab(18.07, 13.80, -32.14)
CIE-LCH	lch(18.07, 34.98, 293.24°)
OKLab	oklab(29.89% 0.0011 -0.0922)
OKLCH	oklch(29.89% 0.092 270.7)
XYZ	xyz(3.1532, 2.5339, 10.2184)
Luminance	0.0253 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D285B #5B501D

analogous

#1D475B #1D285B #311D5B

triadic

#1D285B #5B1D28 #285B1D

tetradic

#1D285B #5B1D47 #5B501D #1D5B31

square

#1D285B #5B1D47 #5B501D #1D5B31

split-complementary

#1D285B #5B311D #475B1D

monochromatic

#070A17 #0E142D #1D285B #2C3C89 #3B51B8

Accessibility & contrast

On white

13.94

#1D285B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1D285B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D285B

13.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D285B	#FFFFFF	#000000	##FFFFFF
##1D285B	1.00	13.94	1.51	13.94
#FFFFFF	13.94	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#092F5D

Deuteranopia (green-blind)

#002A5A

Tritanopia (blue-blind)

#00343D

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1d285b;
/* rgb */ color: rgb(29, 40, 91);
/* oklch */ color: oklch(29.9% 0.092 270.7);

Tailwind

colors: {
  custom: {
    50: '#61618a',
    500: '#1d285b',
    950: '#000000',
  },
}

SCSS

$custom: #1d285b;
$custom-light: #61618a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d285b",
  "rgb": {
    "r": 29,
    "g": 40,
    "b": 91
  },
  "hsl": {
    "h": 229.355,
    "s": 51.667,
    "l": 23.529
  },
  "oklch": {
    "l": 0.29891,
    "c": 0.0922,
    "h": 270.7
  },
  "luminance": 0.02534
}

Semantic roles & 50–950 ramp

primary

#1D285B

secondary

#908344

accent

#C24DDB

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05050C

muted

#79797D

Preview Lab

Preview with #1D285B

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

Preview Lab → · Contrast checker → · Palette generator →