#1D2A71#1D2A71

#1D2A71 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.3% C 0.123 H 270.1°. Best body text is #FFFFFF at 12.95:1 contrast (WCAG AA passes).

Color values

HEX	#1D2A71
RGB	rgb(29, 42, 113)
HSL	hsl(231, 59%, 28%)
HSV	hsv(231, 74%, 44%)
CMYK	cmyk(74.3%, 62.8%, 0%, 55.7%)
CIE-LAB	lab(20.48, 21.14, -42.63)
CIE-LCH	lch(20.48, 47.59, 296.37°)
OKLab	oklab(32.27% 0.0001 -0.123)
OKLCH	oklch(32.27% 0.123 270.1)
XYZ	xyz(4.3143, 3.1090, 15.9923)
Luminance	0.0311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2A71 #71641D

analogous

#1D5471 #1D2A71 #3A1D71

triadic

#1D2A71 #711D2A #2A711D

tetradic

#1D2A71 #711D54 #71641D #1D713A

square

#1D2A71 #711D54 #71641D #1D713A

split-complementary

#1D2A71 #713A1D #54711D

monochromatic

#060918 #111840 #1D2A71 #293CA2 #3C52CD

Accessibility & contrast

On white

12.95

#1D2A71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1D2A71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2A71

12.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2A71	#FFFFFF	#000000	##FFFFFF
##1D2A71	1.00	12.95	1.62	12.95
#FFFFFF	12.95	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003573

Deuteranopia (green-blind)

#002E70

Tritanopia (blue-blind)

#003C49

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1d2a71;
/* rgb */ color: rgb(29, 42, 113);
/* oklch */ color: oklch(32.3% 0.123 270.1);

Tailwind

colors: {
  custom: {
    50: '#66639a',
    500: '#1d2a71',
    950: '#000000',
  },
}

SCSS

$custom: #1d2a71;
$custom-light: #66639a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2a71",
  "rgb": {
    "r": 29,
    "g": 42,
    "b": 113
  },
  "hsl": {
    "h": 230.714,
    "s": 59.155,
    "l": 27.843
  },
  "oklch": {
    "l": 0.32265,
    "c": 0.12301,
    "h": 270.1
  },
  "luminance": 0.03109
}

Semantic roles & 50–950 ramp

primary

#1D2A71

secondary

#A59644

accent

#CA45E2

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1D2A71

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

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