#1D2A8F#1D2A8F

#1D2A8F is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.2% C 0.165 H 269.4°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#1D2A8F
RGB	rgb(29, 42, 143)
HSL	hsl(233, 66%, 34%)
HSV	hsv(233, 80%, 56%)
CMYK	cmyk(79.7%, 70.6%, 0%, 43.9%)
CIE-LAB	lab(23.34, 32.70, -56.89)
CIE-LCH	lch(23.34, 65.62, 299.89°)
OKLab	oklab(35.24% -0.0016 -0.1647)
OKLCH	oklch(35.24% 0.165 269.4)
XYZ	xyz(6.2909, 3.8996, 26.4024)
Luminance	0.0390 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2A8F #8F821D

analogous

#1D638F #1D2A8F #491D8F

triadic

#1D2A8F #8F1D2A #2A8F1D

tetradic

#1D2A8F #8F1D63 #8F821D #1D8F49

square

#1D2A8F #8F1D63 #8F821D #1D8F49

split-complementary

#1D2A8F #8F491D #638F1D

monochromatic

#080C29 #131B5C #1D2A8F #2739C2 #4C5CDB

Accessibility & contrast

On white

11.80

#1D2A8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1D2A8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2A8F

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2A8F	#FFFFFF	#000000	##FFFFFF
##1D2A8F	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D92

Deuteranopia (green-blind)

#00328D

Tritanopia (blue-blind)

#004659

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1d2a8f;
/* rgb */ color: rgb(29, 42, 143);
/* oklch */ color: oklch(35.2% 0.165 269.4);

Tailwind

colors: {
  custom: {
    50: '#6e64b1',
    500: '#1d2a8f',
    950: '#000000',
  },
}

SCSS

$custom: #1d2a8f;
$custom-light: #6e64b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2a8f",
  "rgb": {
    "r": 29,
    "g": 42,
    "b": 143
  },
  "hsl": {
    "h": 233.158,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.35239,
    "c": 0.16475,
    "h": 269.4
  },
  "luminance": 0.039
}

Semantic roles & 50–950 ramp

primary

#1D2A8F

secondary

#BDB04B

accent

#D63FE9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080511

muted

#7B7A80

Preview Lab

Preview with #1D2A8F

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

Preview Lab → · Contrast checker → · Palette generator →