#1C2A9D#1C2A9D

#1C2A9D is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.7% C 0.183 H 268.7°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#1C2A9D
RGB	rgb(28, 42, 157)
HSL	hsl(233, 70%, 36%)
HSV	hsv(233, 82%, 62%)
CMYK	cmyk(82.2%, 73.2%, 0%, 38.4%)
CIE-LAB	lab(24.75, 37.75, -63.18)
CIE-LCH	lch(24.75, 73.59, 300.86°)
OKLab	oklab(36.69% -0.0042 -0.1831)
OKLCH	oklch(36.69% 0.183 268.7)
XYZ	xyz(7.3906, 4.3363, 32.3392)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2A9D #9D8F1C

analogous

#1C6B9D #1C2A9D #4F1C9D

triadic

#1C2A9D #9D1C2A #2A9D1C

tetradic

#1C2A9D #9D1C6B #9D8F1C #1C9D4F

square

#1C2A9D #9D1C6B #9D8F1C #1C9D4F

split-complementary

#1C2A9D #9D4F1C #6B9D1C

monochromatic

#090E35 #131C69 #1C2A9D #2538D1 #5362E0

Accessibility & contrast

On white

11.25

#1C2A9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#1C2A9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2A9D

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2A9D	#FFFFFF	#000000	##FFFFFF
##1C2A9D	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A0

Deuteranopia (green-blind)

#00349B

Tritanopia (blue-blind)

#004B61

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1c2a9d;
/* rgb */ color: rgb(28, 42, 157);
/* oklch */ color: oklch(36.7% 0.183 268.7);

Tailwind

colors: {
  custom: {
    50: '#7164bb',
    500: '#1c2a9d',
    950: '#000000',
  },
}

SCSS

$custom: #1c2a9d;
$custom-light: #7164bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2a9d",
  "rgb": {
    "r": 28,
    "g": 42,
    "b": 157
  },
  "hsl": {
    "h": 233.488,
    "s": 69.73,
    "l": 36.275
  },
  "oklch": {
    "l": 0.36685,
    "c": 0.18311,
    "h": 268.7
  },
  "luminance": 0.04337
}

Semantic roles & 50–950 ramp

primary

#1C2A9D

secondary

#C3B751

accent

#D93BED

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090512

muted

#7B7A81

Preview Lab

Preview with #1C2A9D

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

Preview Lab → · Contrast checker → · Palette generator →