#1D3176#1D3176

#1D3176 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.2% C 0.121 H 267.4°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#1D3176
RGB	rgb(29, 49, 118)
HSL	hsl(227, 61%, 29%)
HSV	hsv(227, 75%, 46%)
CMYK	cmyk(75.4%, 58.5%, 0%, 53.7%)
CIE-LAB	lab(22.88, 18.17, -41.92)
CIE-LCH	lch(22.88, 45.69, 293.44°)
OKLab	oklab(34.19% -0.0056 -0.1208)
OKLCH	oklch(34.19% 0.121 267.4)
XYZ	xyz(4.8739, 3.7653, 17.6059)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3176 #76621D

analogous

#1D5E76 #1D3176 #361D76

triadic

#1D3176 #761D31 #31761D

tetradic

#1D3176 #761D5E #76621D #1D7636

square

#1D3176 #761D5E #76621D #1D7636

split-complementary

#1D3176 #76361D #5E761D

monochromatic

#060A19 #111D45 #1D3176 #2945A7 #3E5FD0

Accessibility & contrast

On white

11.98

#1D3176 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1D3176 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3176

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3176	#FFFFFF	#000000	##FFFFFF
##1D3176	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B78

Deuteranopia (green-blind)

#003375

Tritanopia (blue-blind)

#00424E

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1d3176;
/* rgb */ color: rgb(29, 49, 118);
/* oklch */ color: oklch(34.2% 0.121 267.4);

Tailwind

colors: {
  custom: {
    50: '#67689e',
    500: '#1d3176',
    950: '#000000',
  },
}

SCSS

$custom: #1d3176;
$custom-light: #67689e;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3176",
  "rgb": {
    "r": 29,
    "g": 49,
    "b": 118
  },
  "hsl": {
    "h": 226.517,
    "s": 60.544,
    "l": 28.824
  },
  "oklch": {
    "l": 0.34194,
    "c": 0.12095,
    "h": 267.4
  },
  "luminance": 0.03766
}

Semantic roles & 50–950 ramp

primary

#1D3176

secondary

#AA9345

accent

#C044E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #1D3176

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

Preview Lab → · Contrast checker → · Palette generator →