#1D2158#1D2158

#1D2158 is a dark, moderate blue. Relative luminance 0.021; OKLCH L 28.1% C 0.098 H 275.0°. Best body text is #FFFFFF at 14.89:1 contrast (WCAG AA passes).

Color values

HEX	#1D2158
RGB	rgb(29, 33, 88)
HSL	hsl(236, 50%, 23%)
HSV	hsv(236, 67%, 35%)
CMYK	cmyk(67%, 62.5%, 0%, 65.5%)
CIE-LAB	lab(15.76, 17.72, -33.87)
CIE-LCH	lch(15.76, 38.23, 297.61°)
OKLab	oklab(28.09% 0.0086 -0.0974)
OKLCH	oklch(28.09% 0.098 275)
XYZ	xyz(2.8114, 2.0533, 9.4788)
Luminance	0.0205 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2158 #58541D

analogous

#1D3E58 #1D2158 #361D58

triadic

#1D2158 #581D21 #21581D

tetradic

#1D2158 #581D3E #58541D #1D5836

square

#1D2158 #581D3E #58541D #1D5836

split-complementary

#1D2158 #58361D #3E581D

monochromatic

#080917 #0E102A #1D2158 #2C3286 #3B44B4

Accessibility & contrast

On white

14.89

#1D2158 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#1D2158 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2158

14.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2158	#FFFFFF	#000000	##FFFFFF
##1D2158	1.00	14.89	1.41	14.89
#FFFFFF	14.89	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A5A

Deuteranopia (green-blind)

#002557

Tritanopia (blue-blind)

#002E39

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1d2158;
/* rgb */ color: rgb(29, 33, 88);
/* oklch */ color: oklch(28.1% 0.098 275.0);

Tailwind

colors: {
  custom: {
    50: '#615c88',
    500: '#1d2158',
    950: '#000000',
  },
}

SCSS

$custom: #1d2158;
$custom-light: #615c88;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2158",
  "rgb": {
    "r": 29,
    "g": 33,
    "b": 88
  },
  "hsl": {
    "h": 235.932,
    "s": 50.427,
    "l": 22.941
  },
  "oklch": {
    "l": 0.28086,
    "c": 0.09775,
    "h": 275
  },
  "luminance": 0.02054
}

Semantic roles & 50–950 ramp

primary

#1D2158

secondary

#8D8844

accent

#D04EDA

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05040B

muted

#79797C

Preview Lab

Preview with #1D2158

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

Preview Lab → · Contrast checker → · Palette generator →