#1D287A#1D287A

#1D287A is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.7% C 0.139 H 270.6°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#1D287A
RGB	rgb(29, 40, 122)
HSL	hsl(233, 62%, 30%)
HSV	hsv(233, 76%, 48%)
CMYK	cmyk(76.2%, 67.2%, 0%, 52.2%)
CIE-LAB	lab(20.76, 26.06, -47.93)
CIE-LCH	lch(20.76, 54.55, 298.53°)
OKLab	oklab(32.73% 0.0014 -0.1385)
OKLCH	oklch(32.73% 0.139 270.6)
XYZ	xyz(4.7771, 3.1834, 18.7713)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D287A #7A6F1D

analogous

#1D577A #1D287A #411D7A

triadic

#1D287A #7A1D28 #287A1D

tetradic

#1D287A #7A1D57 #7A6F1D #1D7A41

square

#1D287A #7A1D57 #7A6F1D #1D7A41

split-complementary

#1D287A #7A411D #577A1D

monochromatic

#060819 #111849 #1D287A #2938AB #4051D2

Accessibility & contrast

On white

12.83

#1D287A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1D287A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D287A

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D287A	#FFFFFF	#000000	##FFFFFF
##1D287A	1.00	12.83	1.64	12.83
#FFFFFF	12.83	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367D

Deuteranopia (green-blind)

#002E78

Tritanopia (blue-blind)

#003E4D

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1d287a;
/* rgb */ color: rgb(29, 40, 122);
/* oklch */ color: oklch(32.7% 0.139 270.6);

Tailwind

colors: {
  custom: {
    50: '#6862a1',
    500: '#1d287a',
    950: '#000000',
  },
}

SCSS

$custom: #1d287a;
$custom-light: #6862a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d287a",
  "rgb": {
    "r": 29,
    "g": 40,
    "b": 122
  },
  "hsl": {
    "h": 232.903,
    "s": 61.589,
    "l": 29.608
  },
  "oklch": {
    "l": 0.32734,
    "c": 0.13855,
    "h": 270.6
  },
  "luminance": 0.03184
}

Semantic roles & 50–950 ramp

primary

#1D287A

secondary

#AEA145

accent

#D243E5

background

#F6F5FA

surface

#ECEAF3

border

#C7C6CD

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1D287A

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

Preview Lab → · Contrast checker → · Palette generator →