#1C285B#1C285B

#1C285B is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.8% C 0.093 H 270.0°. Best body text is #FFFFFF at 13.96:1 contrast (WCAG AA passes).

Color values

HEX	#1C285B
RGB	rgb(28, 40, 91)
HSL	hsl(229, 53%, 23%)
HSV	hsv(229, 69%, 36%)
CMYK	cmyk(69.2%, 56%, 0%, 64.3%)
CIE-LAB	lab(18.01, 13.61, -32.25)
CIE-LCH	lch(18.01, 35.00, 292.87°)
OKLab	oklab(29.83% 0 -0.0925)
OKLCH	oklch(29.83% 0.093 270)
XYZ	xyz(3.1254, 2.5195, 10.2171)
Luminance	0.0252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C285B #5B4F1C

analogous

#1C475B #1C285B #2F1C5B

triadic

#1C285B #5B1C28 #285B1C

tetradic

#1C285B #5B1C47 #5B4F1C #1C5B2F

square

#1C285B #5B1C47 #5B4F1C #1C5B2F

split-complementary

#1C285B #5B2F1C #475B1C

monochromatic

#070A17 #0E132C #1C285B #2A3D8A #3951B9

Accessibility & contrast

On white

13.96

#1C285B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#1C285B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C285B

13.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C285B	#FFFFFF	#000000	##FFFFFF
##1C285B	1.00	13.96	1.50	13.96
#FFFFFF	13.96	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#092F5D

Deuteranopia (green-blind)

#00295A

Tritanopia (blue-blind)

#00343D

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1c285b;
/* rgb */ color: rgb(28, 40, 91);
/* oklch */ color: oklch(29.8% 0.093 270.0);

Tailwind

colors: {
  custom: {
    50: '#60618a',
    500: '#1c285b',
    950: '#000000',
  },
}

SCSS

$custom: #1c285b;
$custom-light: #60618a;
$custom-dark: #000000;

JSON

{
  "hex": "#1c285b",
  "rgb": {
    "r": 28,
    "g": 40,
    "b": 91
  },
  "hsl": {
    "h": 228.571,
    "s": 52.941,
    "l": 23.333
  },
  "oklch": {
    "l": 0.29825,
    "c": 0.09253,
    "h": 270
  },
  "luminance": 0.0252
}

Semantic roles & 50–950 ramp

primary

#1C285B

secondary

#908242

accent

#C14BDC

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05050C

muted

#79797D

Preview Lab

Preview with #1C285B

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

Preview Lab → · Contrast checker → · Palette generator →