#1D2877#1D2877

#1D2877 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.4% C 0.134 H 270.6°. Best body text is #FFFFFF at 12.95:1 contrast (WCAG AA passes).

Color values

HEX	#1D2877
RGB	rgb(29, 40, 119)
HSL	hsl(233, 61%, 29%)
HSV	hsv(233, 76%, 47%)
CMYK	cmyk(75.6%, 66.4%, 0%, 53.3%)
CIE-LAB	lab(20.48, 24.89, -46.48)
CIE-LCH	lch(20.48, 52.72, 298.17°)
OKLab	oklab(32.44% 0.0015 -0.1343)
OKLCH	oklch(32.44% 0.134 270.6)
XYZ	xyz(4.5941, 3.1102, 17.8074)
Luminance	0.0311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2877 #776C1D

analogous

#1D5577 #1D2877 #3F1D77

triadic

#1D2877 #771D28 #28771D

tetradic

#1D2877 #771D55 #776C1D #1D773F

square

#1D2877 #771D55 #776C1D #1D773F

split-complementary

#1D2877 #773F1D #55771D

monochromatic

#060819 #111746 #1D2877 #2939A8 #3E50D0

Accessibility & contrast

On white

12.95

#1D2877 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1D2877 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2877

12.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2877	#FFFFFF	#000000	##FFFFFF
##1D2877	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)

#00367A

Deuteranopia (green-blind)

#002D75

Tritanopia (blue-blind)

#003D4B

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1d2877;
/* rgb */ color: rgb(29, 40, 119);
/* oklch */ color: oklch(32.4% 0.134 270.6);

Tailwind

colors: {
  custom: {
    50: '#68629f',
    500: '#1d2877',
    950: '#000000',
  },
}

SCSS

$custom: #1d2877;
$custom-light: #68629f;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2877",
  "rgb": {
    "r": 29,
    "g": 40,
    "b": 119
  },
  "hsl": {
    "h": 232.667,
    "s": 60.811,
    "l": 29.02
  },
  "oklch": {
    "l": 0.32438,
    "c": 0.13431,
    "h": 270.6
  },
  "luminance": 0.03111
}

Semantic roles & 50–950 ramp

primary

#1D2877

secondary

#AB9E45

accent

#D044E4

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050F

muted

#7A797E

Preview Lab

Preview with #1D2877

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

Preview Lab → · Contrast checker → · Palette generator →