#1D285A#1D285A

#1D285A is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.8% C 0.091 H 270.7°. Best body text is #FFFFFF at 13.97:1 contrast (WCAG AA passes).

Color values

HEX	#1D285A
RGB	rgb(29, 40, 90)
HSL	hsl(229, 51%, 23%)
HSV	hsv(229, 68%, 35%)
CMYK	cmyk(67.8%, 55.6%, 0%, 64.7%)
CIE-LAB	lab(17.99, 13.40, -31.60)
CIE-LCH	lch(17.99, 34.33, 292.98°)
OKLab	oklab(29.81% 0.001 -0.0906)
OKLCH	oklch(29.81% 0.091 270.7)
XYZ	xyz(3.1103, 2.5167, 9.9927)
Luminance	0.0252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D285A #5A4F1D

analogous

#1D465A #1D285A #301D5A

triadic

#1D285A #5A1D28 #285A1D

tetradic

#1D285A #5A1D46 #5A4F1D #1D5A30

square

#1D285A #5A1D46 #5A4F1D #1D5A30

split-complementary

#1D285A #5A301D #465A1D

monochromatic

#070A17 #0E132C #1D285A #2C3D88 #3B51B7

Accessibility & contrast

On white

13.97

#1D285A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#1D285A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D285A

13.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D285A	#FFFFFF	#000000	##FFFFFF
##1D285A	1.00	13.97	1.50	13.97
#FFFFFF	13.97	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B2F5C

Deuteranopia (green-blind)

#002959

Tritanopia (blue-blind)

#00343C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1d285a;
/* rgb */ color: rgb(29, 40, 90);
/* oklch */ color: oklch(29.8% 0.091 270.7);

Tailwind

colors: {
  custom: {
    50: '#606189',
    500: '#1d285a',
    950: '#000000',
  },
}

SCSS

$custom: #1d285a;
$custom-light: #606189;
$custom-dark: #000000;

JSON

{
  "hex": "#1d285a",
  "rgb": {
    "r": 29,
    "g": 40,
    "b": 90
  },
  "hsl": {
    "h": 229.18,
    "s": 51.261,
    "l": 23.333
  },
  "oklch": {
    "l": 0.29808,
    "c": 0.09061,
    "h": 270.7
  },
  "luminance": 0.02517
}

Semantic roles & 50–950 ramp

primary

#1D285A

secondary

#8F8244

accent

#C14DDB

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05050B

muted

#79797C

Preview Lab

Preview with #1D285A

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

Preview Lab → · Contrast checker → · Palette generator →