#1D2D5B#1D2D5B

#1D2D5B is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.1% C 0.085 H 267.0°. Best body text is #FFFFFF at 13.30:1 contrast (WCAG AA passes).

Color values

HEX	#1D2D5B
RGB	rgb(29, 45, 91)
HSL	hsl(225, 52%, 24%)
HSV	hsv(225, 68%, 36%)
CMYK	cmyk(68.1%, 50.5%, 0%, 64.3%)
CIE-LAB	lab(19.61, 10.16, -29.67)
CIE-LCH	lch(19.61, 31.36, 288.91°)
OKLab	oklab(31.06% -0.0045 -0.0848)
OKLCH	oklch(31.06% 0.085 267)
XYZ	xyz(3.3328, 2.8930, 10.2783)
Luminance	0.0289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2D5B #5B4B1D

analogous

#1D4C5B #1D2D5B #2C1D5B

triadic

#1D2D5B #5B1D2D #2D5B1D

tetradic

#1D2D5B #5B1D4C #5B4B1D #1D5B2C

square

#1D2D5B #5B1D4C #5B4B1D #1D5B2C

split-complementary

#1D2D5B #5B2C1D #4C5B1D

monochromatic

#070B17 #0E162D #1D2D5B #2C4489 #3B5BB8

Accessibility & contrast

On white

13.30

#1D2D5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1D2D5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2D5B

13.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2D5B	#FFFFFF	#000000	##FFFFFF
##1D2D5B	1.00	13.30	1.58	13.30
#FFFFFF	13.30	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16325D

Deuteranopia (green-blind)

#0B2D5A

Tritanopia (blue-blind)

#00383F

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1d2d5b;
/* rgb */ color: rgb(29, 45, 91);
/* oklch */ color: oklch(31.1% 0.085 267.0);

Tailwind

colors: {
  custom: {
    50: '#60658a',
    500: '#1d2d5b',
    950: '#000000',
  },
}

SCSS

$custom: #1d2d5b;
$custom-light: #60658a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2d5b",
  "rgb": {
    "r": 29,
    "g": 45,
    "b": 91
  },
  "hsl": {
    "h": 224.516,
    "s": 51.667,
    "l": 23.529
  },
  "oklch": {
    "l": 0.3106,
    "c": 0.08495,
    "h": 267
  },
  "luminance": 0.02893
}

Semantic roles & 50–950 ramp

primary

#1D2D5B

secondary

#907C44

accent

#B64DDB

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05050B

muted

#797A7C

Preview Lab

Preview with #1D2D5B

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

Preview Lab → · Contrast checker → · Palette generator →