#1D2980#1D2980

#1D2980 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.5% C 0.146 H 270.1°. Best body text is #FFFFFF at 12.49:1 contrast (WCAG AA passes).

Color values

HEX	#1D2980
RGB	rgb(29, 41, 128)
HSL	hsl(233, 63%, 31%)
HSV	hsv(233, 77%, 50%)
CMYK	cmyk(77.3%, 68%, 0%, 49.8%)
CIE-LAB	lab(21.60, 27.69, -50.36)
CIE-LCH	lch(21.60, 57.47, 298.80°)
OKLab	oklab(33.52% 0.0003 -0.1457)
OKLCH	oklch(33.52% 0.146 270.1)
XYZ	xyz(5.1946, 3.4050, 20.8014)
Luminance	0.0341 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2980 #80741D

analogous

#1D5A80 #1D2980 #421D80

triadic

#1D2980 #801D29 #29801D

tetradic

#1D2980 #801D5A #80741D #1D8042

square

#1D2980 #801D5A #80741D #1D8042

split-complementary

#1D2980 #80421D #5A801D

monochromatic

#06091C #12194E #1D2980 #2839B2 #4355D4

Accessibility & contrast

On white

12.49

#1D2980 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1D2980 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2980

12.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2980	#FFFFFF	#000000	##FFFFFF
##1D2980	1.00	12.49	1.68	12.49
#FFFFFF	12.49	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003983

Deuteranopia (green-blind)

#002F7E

Tritanopia (blue-blind)

#004050

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d2980;
/* rgb */ color: rgb(29, 41, 128);
/* oklch */ color: oklch(33.5% 0.146 270.1);

Tailwind

colors: {
  custom: {
    50: '#6a62a6',
    500: '#1d2980',
    950: '#000000',
  },
}

SCSS

$custom: #1d2980;
$custom-light: #6a62a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2980",
  "rgb": {
    "r": 29,
    "g": 41,
    "b": 128
  },
  "hsl": {
    "h": 232.727,
    "s": 63.057,
    "l": 30.784
  },
  "oklch": {
    "l": 0.33521,
    "c": 0.14567,
    "h": 270.1
  },
  "luminance": 0.03406
}

Semantic roles & 50–950 ramp

primary

#1D2980

secondary

#B3A645

accent

#D242E6

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1D2980

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

Preview Lab → · Contrast checker → · Palette generator →