#1D2F5D#1D2F5D

#1D2F5D is a dark, moderate blue. Relative luminance 0.031; OKLCH L 31.7% C 0.085 H 265.7°. Best body text is #FFFFFF at 12.99:1 contrast (WCAG AA passes).

Color values

HEX	#1D2F5D
RGB	rgb(29, 47, 93)
HSL	hsl(223, 52%, 24%)
HSV	hsv(223, 69%, 36%)
CMYK	cmyk(68.8%, 49.5%, 0%, 63.5%)
CIE-LAB	lab(20.38, 9.52, -29.76)
CIE-LCH	lch(20.38, 31.24, 287.74°)
OKLab	oklab(31.69% -0.0064 -0.0851)
OKLCH	oklch(31.69% 0.085 265.7)
XYZ	xyz(3.4983, 3.0842, 10.7648)
Luminance	0.0308 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2F5D #5D4B1D

analogous

#1D4F5D #1D2F5D #2B1D5D

triadic

#1D2F5D #5D1D2F #2F5D1D

tetradic

#1D2F5D #5D1D4F #5D4B1D #1D5D2B

square

#1D2F5D #5D1D4F #5D4B1D #1D5D2B

split-complementary

#1D2F5D #5D2B1D #4F5D1D

monochromatic

#070C17 #0E172E #1D2F5D #2C478C #3A5EBA

Accessibility & contrast

On white

12.99

#1D2F5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1D2F5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2F5D

12.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2F5D	#FFFFFF	#000000	##FFFFFF
##1D2F5D	1.00	12.99	1.62	12.99
#FFFFFF	12.99	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18345F

Deuteranopia (green-blind)

#0D2E5C

Tritanopia (blue-blind)

#003A41

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1d2f5d;
/* rgb */ color: rgb(29, 47, 93);
/* oklch */ color: oklch(31.7% 0.085 265.7);

Tailwind

colors: {
  custom: {
    50: '#61678b',
    500: '#1d2f5d',
    950: '#000000',
  },
}

SCSS

$custom: #1d2f5d;
$custom-light: #61678b;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2f5d",
  "rgb": {
    "r": 29,
    "g": 47,
    "b": 93
  },
  "hsl": {
    "h": 223.125,
    "s": 52.459,
    "l": 23.922
  },
  "oklch": {
    "l": 0.31693,
    "c": 0.08531,
    "h": 265.7
  },
  "luminance": 0.03085
}

Semantic roles & 50–950 ramp

primary

#1D2F5D

secondary

#927C44

accent

#B34CDC

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #1D2F5D

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

Preview Lab → · Contrast checker → · Palette generator →