#1C2A78#1C2A78

#1C2A78 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 32.9% C 0.133 H 269.6°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#1C2A78
RGB	rgb(28, 42, 120)
HSL	hsl(231, 62%, 29%)
HSV	hsv(231, 77%, 47%)
CMYK	cmyk(76.7%, 65%, 0%, 52.9%)
CIE-LAB	lab(21.05, 23.77, -46.18)
CIE-LCH	lch(21.05, 51.94, 297.23°)
OKLab	oklab(32.87% -0.001 -0.1335)
OKLCH	oklch(32.87% 0.133 269.6)
XYZ	xyz(4.6959, 3.2584, 18.1471)
Luminance	0.0326 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2A78 #786A1C

analogous

#1C5878 #1C2A78 #3C1C78

triadic

#1C2A78 #781C2A #2A781C

tetradic

#1C2A78 #781C58 #786A1C #1C783C

square

#1C2A78 #781C58 #786A1C #1C783C

split-complementary

#1C2A78 #783C1C #58781C

monochromatic

#060919 #101946 #1C2A78 #283BAA #3D53D2

Accessibility & contrast

On white

12.71

#1C2A78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1C2A78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2A78

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2A78	#FFFFFF	#000000	##FFFFFF
##1C2A78	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377B

Deuteranopia (green-blind)

#002E77

Tritanopia (blue-blind)

#003E4C

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1c2a78;
/* rgb */ color: rgb(28, 42, 120);
/* oklch */ color: oklch(32.9% 0.133 269.6);

Tailwind

colors: {
  custom: {
    50: '#6763a0',
    500: '#1c2a78',
    950: '#000000',
  },
}

SCSS

$custom: #1c2a78;
$custom-light: #6763a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2a78",
  "rgb": {
    "r": 28,
    "g": 42,
    "b": 120
  },
  "hsl": {
    "h": 230.87,
    "s": 62.162,
    "l": 29.02
  },
  "oklch": {
    "l": 0.32872,
    "c": 0.13345,
    "h": 269.6
  },
  "luminance": 0.03259
}

Semantic roles & 50–950 ramp

primary

#1C2A78

secondary

#AC9C44

accent

#CC43E5

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050F

muted

#7A797E

Preview Lab

Preview with #1C2A78

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

Preview Lab → · Contrast checker → · Palette generator →