#1D2B63#1D2B63

#1D2B63 is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.2% C 0.100 H 269.2°. Best body text is #FFFFFF at 13.31:1 contrast (WCAG AA passes).

Color values

HEX	#1D2B63
RGB	rgb(29, 43, 99)
HSL	hsl(228, 55%, 25%)
HSV	hsv(228, 71%, 39%)
CMYK	cmyk(70.7%, 56.6%, 0%, 61.2%)
CIE-LAB	lab(19.60, 14.83, -34.96)
CIE-LCH	lch(19.60, 37.98, 292.98°)
OKLab	oklab(31.24% -0.0013 -0.1004)
OKLCH	oklch(31.24% 0.1 269.2)
XYZ	xyz(3.6219, 2.8895, 12.1688)
Luminance	0.0289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2B63 #63551D

analogous

#1D4E63 #1D2B63 #321D63

triadic

#1D2B63 #631D2B #2B631D

tetradic

#1D2B63 #631D4E #63551D #1D6332

square

#1D2B63 #631D4E #63551D #1D6332

split-complementary

#1D2B63 #63321D #4E631D

monochromatic

#070A18 #0F1634 #1D2B63 #2B4092 #3954C2

Accessibility & contrast

On white

13.31

#1D2B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1D2B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2B63

13.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2B63	#FFFFFF	#000000	##FFFFFF
##1D2B63	1.00	13.31	1.58	13.31
#FFFFFF	13.31	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#063365

Deuteranopia (green-blind)

#002C62

Tritanopia (blue-blind)

#003842

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1d2b63;
/* rgb */ color: rgb(29, 43, 99);
/* oklch */ color: oklch(31.2% 0.100 269.2);

Tailwind

colors: {
  custom: {
    50: '#626490',
    500: '#1d2b63',
    950: '#000000',
  },
}

SCSS

$custom: #1d2b63;
$custom-light: #626490;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2b63",
  "rgb": {
    "r": 29,
    "g": 43,
    "b": 99
  },
  "hsl": {
    "h": 228,
    "s": 54.688,
    "l": 25.098
  },
  "oklch": {
    "l": 0.3124,
    "c": 0.10046,
    "h": 269.2
  },
  "luminance": 0.0289
}

Semantic roles & 50–950 ramp

primary

#1D2B63

secondary

#988744

accent

#C04ADE

background

#F6F5F8

surface

#EBEAF0

border

#C6C6CB

text

#06050C

muted

#7A797D

Preview Lab

Preview with #1D2B63

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

Preview Lab → · Contrast checker → · Palette generator →