#1C2B7B#1C2B7B

#1C2B7B is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.4% C 0.136 H 269.2°. Best body text is #FFFFFF at 12.49:1 contrast (WCAG AA passes).

Color values

HEX	#1C2B7B
RGB	rgb(28, 43, 123)
HSL	hsl(231, 63%, 30%)
HSV	hsv(231, 77%, 48%)
CMYK	cmyk(77.2%, 65%, 0%, 51.8%)
CIE-LAB	lab(21.59, 24.25, -47.20)
CIE-LCH	lch(21.59, 53.07, 297.19°)
OKLab	oklab(33.36% -0.0018 -0.1364)
OKLCH	oklch(33.36% 0.136 269.2)
XYZ	xyz(4.9167, 3.4042, 19.1330)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2B7B #7B6C1C

analogous

#1C5B7B #1C2B7B #3C1C7B

triadic

#1C2B7B #7B1C2B #2B7B1C

tetradic

#1C2B7B #7B1C5B #7B6C1C #1C7B3C

square

#1C2B7B #7B1C5B #7B6C1C #1C7B3C

split-complementary

#1C2B7B #7B3C1C #5B7B1C

monochromatic

#060919 #111A49 #1C2B7B #273CAD #3E56D3

Accessibility & contrast

On white

12.49

#1C2B7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1C2B7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2B7B

12.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2B7B	#FFFFFF	#000000	##FFFFFF
##1C2B7B	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)

#00387E

Deuteranopia (green-blind)

#002F79

Tritanopia (blue-blind)

#00404E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1c2b7b;
/* rgb */ color: rgb(28, 43, 123);
/* oklch */ color: oklch(33.4% 0.136 269.2);

Tailwind

colors: {
  custom: {
    50: '#6864a2',
    500: '#1c2b7b',
    950: '#000000',
  },
}

SCSS

$custom: #1c2b7b;
$custom-light: #6864a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2b7b",
  "rgb": {
    "r": 28,
    "g": 43,
    "b": 123
  },
  "hsl": {
    "h": 230.526,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.33359,
    "c": 0.13643,
    "h": 269.2
  },
  "luminance": 0.03405
}

Semantic roles & 50–950 ramp

primary

#1C2B7B

secondary

#AF9E44

accent

#CC42E6

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1C2B7B

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

Preview Lab → · Contrast checker → · Palette generator →