#1C2989#1C2989

#1C2989 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.4% C 0.158 H 269.5°. Best body text is #FFFFFF at 12.15:1 contrast (WCAG AA passes).

Color values

HEX	#1C2989
RGB	rgb(28, 41, 137)
HSL	hsl(233, 66%, 32%)
HSV	hsv(233, 80%, 54%)
CMYK	cmyk(79.6%, 70.1%, 0%, 46.3%)
CIE-LAB	lab(22.44, 31.01, -54.64)
CIE-LCH	lch(22.44, 62.83, 299.57°)
OKLab	oklab(34.39% -0.0015 -0.1582)
OKLCH	oklch(34.39% 0.158 269.5)
XYZ	xyz(5.7856, 3.6382, 24.0594)
Luminance	0.0364 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2989 #897C1C

analogous

#1C6089 #1C2989 #451C89

triadic

#1C2989 #891C29 #29891C

tetradic

#1C2989 #891C60 #897C1C #1C8945

square

#1C2989 #891C60 #897C1C #1C8945

split-complementary

#1C2989 #89451C #60891C

monochromatic

#070B23 #121A56 #1C2989 #2638BC #4658D9

Accessibility & contrast

On white

12.15

#1C2989 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1C2989 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2989

12.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2989	#FFFFFF	#000000	##FFFFFF
##1C2989	1.00	12.15	1.73	12.15
#FFFFFF	12.15	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8C

Deuteranopia (green-blind)

#003087

Tritanopia (blue-blind)

#004355

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1c2989;
/* rgb */ color: rgb(28, 41, 137);
/* oklch */ color: oklch(34.4% 0.158 269.5);

Tailwind

colors: {
  custom: {
    50: '#6c63ac',
    500: '#1c2989',
    950: '#000000',
  },
}

SCSS

$custom: #1c2989;
$custom-light: #6c63ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2989",
  "rgb": {
    "r": 28,
    "g": 41,
    "b": 137
  },
  "hsl": {
    "h": 232.844,
    "s": 66.061,
    "l": 32.353
  },
  "oklch": {
    "l": 0.3439,
    "c": 0.1582,
    "h": 269.5
  },
  "luminance": 0.03639
}

Semantic roles & 50–950 ramp

primary

#1C2989

secondary

#BBAD46

accent

#D53FE9

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1C2989

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

Preview Lab → · Contrast checker → · Palette generator →