#1D2983#1D2983

#1D2983 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.8% C 0.150 H 270.0°. Best body text is #FFFFFF at 12.37:1 contrast (WCAG AA passes).

Color values

HEX	#1D2983
RGB	rgb(29, 41, 131)
HSL	hsl(233, 64%, 31%)
HSV	hsv(233, 78%, 51%)
CMYK	cmyk(77.9%, 68.7%, 0%, 48.6%)
CIE-LAB	lab(21.89, 28.83, -51.77)
CIE-LCH	lch(21.89, 59.26, 299.11°)
OKLab	oklab(33.82% 0 -0.1498)
OKLCH	oklch(33.82% 0.15 270)
XYZ	xyz(5.3950, 3.4852, 21.8567)
Luminance	0.0349 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2983 #83771D

analogous

#1D5C83 #1D2983 #441D83

triadic

#1D2983 #831D29 #29831D

tetradic

#1D2983 #831D5C #83771D #1D8344

square

#1D2983 #831D5C #83771D #1D8344

split-complementary

#1D2983 #83441D #5C831D

monochromatic

#070A1F #121951 #1D2983 #2839B5 #4556D6

Accessibility & contrast

On white

12.37

#1D2983 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1D2983 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2983

12.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2983	#FFFFFF	#000000	##FFFFFF
##1D2983	1.00	12.37	1.70	12.37
#FFFFFF	12.37	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003986

Deuteranopia (green-blind)

#003081

Tritanopia (blue-blind)

#004152

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d2983;
/* rgb */ color: rgb(29, 41, 131);
/* oklch */ color: oklch(33.8% 0.150 270.0);

Tailwind

colors: {
  custom: {
    50: '#6b63a8',
    500: '#1d2983',
    950: '#000000',
  },
}

SCSS

$custom: #1d2983;
$custom-light: #6b63a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2983",
  "rgb": {
    "r": 29,
    "g": 41,
    "b": 131
  },
  "hsl": {
    "h": 232.941,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.33824,
    "c": 0.1498,
    "h": 270
  },
  "luminance": 0.03486
}

Semantic roles & 50–950 ramp

primary

#1D2983

secondary

#B6A946

accent

#D341E7

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#080510

muted

#7A797F

Preview Lab

Preview with #1D2983

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

Preview Lab → · Contrast checker → · Palette generator →