#1D2F5E#1D2F5E

#1D2F5E is a dark, moderate blue. Relative luminance 0.031; OKLCH L 31.8% C 0.087 H 265.9°. Best body text is #FFFFFF at 12.96:1 contrast (WCAG AA passes).

Color values

HEX	#1D2F5E
RGB	rgb(29, 47, 94)
HSL	hsl(223, 53%, 24%)
HSV	hsv(223, 69%, 37%)
CMYK	cmyk(69.1%, 50%, 0%, 63.1%)
CIE-LAB	lab(20.45, 9.92, -30.31)
CIE-LCH	lch(20.45, 31.89, 288.12°)
OKLab	oklab(31.77% -0.0062 -0.0867)
OKLCH	oklch(31.77% 0.087 265.9)
XYZ	xyz(3.5429, 3.1021, 10.9996)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2F5E #5E4C1D

analogous

#1D505E #1D2F5E #2C1D5E

triadic

#1D2F5E #5E1D2F #2F5E1D

tetradic

#1D2F5E #5E1D50 #5E4C1D #1D5E2C

square

#1D2F5E #5E1D50 #5E4C1D #1D5E2C

split-complementary

#1D2F5E #5E2C1D #505E1D

monochromatic

#070C17 #0F182F #1D2F5E #2B468D #3A5EBC

Accessibility & contrast

On white

12.96

#1D2F5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1D2F5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2F5E

12.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2F5E	#FFFFFF	#000000	##FFFFFF
##1D2F5E	1.00	12.96	1.62	12.96
#FFFFFF	12.96	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#183460

Deuteranopia (green-blind)

#0B2E5D

Tritanopia (blue-blind)

#003A42

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1d2f5e;
/* rgb */ color: rgb(29, 47, 94);
/* oklch */ color: oklch(31.8% 0.087 265.9);

Tailwind

colors: {
  custom: {
    50: '#61678c',
    500: '#1d2f5e',
    950: '#000000',
  },
}

SCSS

$custom: #1d2f5e;
$custom-light: #61678c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2f5e",
  "rgb": {
    "r": 29,
    "g": 47,
    "b": 94
  },
  "hsl": {
    "h": 223.385,
    "s": 52.846,
    "l": 24.118
  },
  "oklch": {
    "l": 0.31769,
    "c": 0.08689,
    "h": 265.9
  },
  "luminance": 0.03102
}

Semantic roles & 50–950 ramp

primary

#1D2F5E

secondary

#937D44

accent

#B44CDC

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05060C

muted

#7A7A7D

Preview Lab

Preview with #1D2F5E

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

Preview Lab → · Contrast checker → · Palette generator →