#1C2A7D#1C2A7D

#1C2A7D is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.4% C 0.141 H 269.5°. Best body text is #FFFFFF at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#1C2A7D
RGB	rgb(28, 42, 125)
HSL	hsl(231, 63%, 30%)
HSV	hsv(231, 78%, 49%)
CMYK	cmyk(77.6%, 66.4%, 0%, 51%)
CIE-LAB	lab(21.52, 25.73, -48.60)
CIE-LCH	lch(21.52, 54.99, 297.90°)
OKLab	oklab(33.36% -0.0012 -0.1405)
OKLCH	oklch(33.36% 0.141 269.5)
XYZ	xyz(5.0073, 3.3829, 19.7871)
Luminance	0.0338 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2A7D #7D6F1C

analogous

#1C5B7D #1C2A7D #3E1C7D

triadic

#1C2A7D #7D1C2A #2A7D1C

tetradic

#1C2A7D #7D1C5B #7D6F1C #1C7D3E

square

#1C2A7D #7D1C5B #7D6F1C #1C7D3E

split-complementary

#1C2A7D #7D3E1C #5B7D1C

monochromatic

#060819 #11194B #1C2A7D #273BAF #3F55D4

Accessibility & contrast

On white

12.53

#1C2A7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1C2A7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2A7D

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2A7D	#FFFFFF	#000000	##FFFFFF
##1C2A7D	1.00	12.53	1.68	12.53
#FFFFFF	12.53	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003880

Deuteranopia (green-blind)

#002F7B

Tritanopia (blue-blind)

#00404F

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1c2a7d;
/* rgb */ color: rgb(28, 42, 125);
/* oklch */ color: oklch(33.4% 0.141 269.5);

Tailwind

colors: {
  custom: {
    50: '#6963a3',
    500: '#1c2a7d',
    950: '#000000',
  },
}

SCSS

$custom: #1c2a7d;
$custom-light: #6963a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2a7d",
  "rgb": {
    "r": 28,
    "g": 42,
    "b": 125
  },
  "hsl": {
    "h": 231.34,
    "s": 63.399,
    "l": 30
  },
  "oklch": {
    "l": 0.33359,
    "c": 0.14054,
    "h": 269.5
  },
  "luminance": 0.03383
}

Semantic roles & 50–950 ramp

primary

#1C2A7D

secondary

#B1A144

accent

#CF41E6

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1C2A7D

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

Preview Lab → · Contrast checker → · Palette generator →