#1D2D8C#1D2D8C

#1D2D8C is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.5% C 0.157 H 268.9°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#1D2D8C
RGB	rgb(29, 45, 140)
HSL	hsl(231, 66%, 33%)
HSV	hsv(231, 79%, 55%)
CMYK	cmyk(79.3%, 67.9%, 0%, 45.1%)
CIE-LAB	lab(23.77, 29.59, -54.31)
CIE-LCH	lch(23.77, 61.85, 298.58°)
OKLab	oklab(35.47% -0.003 -0.1572)
OKLCH	oklch(35.47% 0.157 268.9)
XYZ	xyz(6.1771, 4.0307, 25.2583)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2D8C #8C7C1D

analogous

#1D648C #1D2D8C #441D8C

triadic

#1D2D8C #8C1D2D #2D8C1D

tetradic

#1D2D8C #8C1D64 #8C7C1D #1D8C44

square

#1D2D8C #8C1D64 #8C7C1D #1D8C44

split-complementary

#1D2D8C #8C441D #648C1D

monochromatic

#080C27 #121D59 #1D2D8C #283DBF #4A5FD9

Accessibility & contrast

On white

11.63

#1D2D8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#1D2D8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2D8C

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2D8C	#FFFFFF	#000000	##FFFFFF
##1D2D8C	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8F

Deuteranopia (green-blind)

#00338A

Tritanopia (blue-blind)

#004758

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1d2d8c;
/* rgb */ color: rgb(29, 45, 140);
/* oklch */ color: oklch(35.5% 0.157 268.9);

Tailwind

colors: {
  custom: {
    50: '#6d66af',
    500: '#1d2d8c',
    950: '#000000',
  },
}

SCSS

$custom: #1d2d8c;
$custom-light: #6d66af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2d8c",
  "rgb": {
    "r": 29,
    "g": 45,
    "b": 140
  },
  "hsl": {
    "h": 231.351,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.35466,
    "c": 0.15723,
    "h": 268.9
  },
  "luminance": 0.04031
}

Semantic roles & 50–950 ramp

primary

#1D2D8C

secondary

#BCAB49

accent

#D03FE9

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1D2D8C

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

Preview Lab → · Contrast checker → · Palette generator →