#1C2980#1C2980

#1C2980 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.5% C 0.146 H 269.7°. Best body text is #FFFFFF at 12.51:1 contrast (WCAG AA passes).

Color values

HEX	#1C2980
RGB	rgb(28, 41, 128)
HSL	hsl(232, 64%, 31%)
HSV	hsv(232, 78%, 50%)
CMYK	cmyk(78.1%, 68%, 0%, 49.8%)
CIE-LAB	lab(21.55, 27.57, -50.45)
CIE-LCH	lch(21.55, 57.50, 298.66°)
OKLab	oklab(33.47% -0.0008 -0.1459)
OKLCH	oklch(33.47% 0.146 269.7)
XYZ	xyz(5.1668, 3.3907, 20.8001)
Luminance	0.0339 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2980 #80731C

analogous

#1C5B80 #1C2980 #411C80

triadic

#1C2980 #801C29 #29801C

tetradic

#1C2980 #801C5B #80731C #1C8041

square

#1C2980 #801C5B #80731C #1C8041

split-complementary

#1C2980 #80411C #5B801C

monochromatic

#06091C #11194E #1C2980 #2739B2 #4154D5

Accessibility & contrast

On white

12.51

#1C2980 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1C2980 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2980

12.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2980	#FFFFFF	#000000	##FFFFFF
##1C2980	1.00	12.51	1.68	12.51
#FFFFFF	12.51	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003883

Deuteranopia (green-blind)

#002F7E

Tritanopia (blue-blind)

#004050

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1c2980;
/* rgb */ color: rgb(28, 41, 128);
/* oklch */ color: oklch(33.5% 0.146 269.7);

Tailwind

colors: {
  custom: {
    50: '#6a62a6',
    500: '#1c2980',
    950: '#000000',
  },
}

SCSS

$custom: #1c2980;
$custom-light: #6a62a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2980",
  "rgb": {
    "r": 28,
    "g": 41,
    "b": 128
  },
  "hsl": {
    "h": 232.2,
    "s": 64.103,
    "l": 30.588
  },
  "oklch": {
    "l": 0.33468,
    "c": 0.14595,
    "h": 269.7
  },
  "luminance": 0.03391
}

Semantic roles & 50–950 ramp

primary

#1C2980

secondary

#B3A544

accent

#D141E7

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1C2980

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

Preview Lab → · Contrast checker → · Palette generator →