#1D2978#1D2978

#1D2978 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.7% C 0.134 H 270.3°. Best body text is #FFFFFF at 12.80:1 contrast (WCAG AA passes).

Color values

HEX	#1D2978
RGB	rgb(29, 41, 120)
HSL	hsl(232, 61%, 29%)
HSV	hsv(232, 76%, 47%)
CMYK	cmyk(75.8%, 65.8%, 0%, 52.9%)
CIE-LAB	lab(20.84, 24.59, -46.53)
CIE-LCH	lch(20.84, 52.63, 297.86°)
OKLab	oklab(32.73% 0.0008 -0.1344)
OKLCH	oklch(32.73% 0.134 270.3)
XYZ	xyz(4.6886, 3.2027, 18.1367)
Luminance	0.0320 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2978 #786C1D

analogous

#1D5778 #1D2978 #3F1D78

triadic

#1D2978 #781D29 #29781D

tetradic

#1D2978 #781D57 #786C1D #1D783F

square

#1D2978 #781D57 #786C1D #1D783F

split-complementary

#1D2978 #783F1D #57781D

monochromatic

#060819 #111847 #1D2978 #293AA9 #3F52D1

Accessibility & contrast

On white

12.80

#1D2978 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1D2978 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2978

12.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2978	#FFFFFF	#000000	##FFFFFF
##1D2978	1.00	12.80	1.64	12.80
#FFFFFF	12.80	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367B

Deuteranopia (green-blind)

#002E76

Tritanopia (blue-blind)

#003D4C

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1d2978;
/* rgb */ color: rgb(29, 41, 120);
/* oklch */ color: oklch(32.7% 0.134 270.3);

Tailwind

colors: {
  custom: {
    50: '#6862a0',
    500: '#1d2978',
    950: '#000000',
  },
}

SCSS

$custom: #1d2978;
$custom-light: #6862a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2978",
  "rgb": {
    "r": 29,
    "g": 41,
    "b": 120
  },
  "hsl": {
    "h": 232.088,
    "s": 61.074,
    "l": 29.216
  },
  "oklch": {
    "l": 0.3273,
    "c": 0.13445,
    "h": 270.3
  },
  "luminance": 0.03203
}

Semantic roles & 50–950 ramp

primary

#1D2978

secondary

#AC9E45

accent

#CF44E4

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050F

muted

#7A797E

Preview Lab

Preview with #1D2978

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

Preview Lab → · Contrast checker → · Palette generator →