#1C2158#1C2158

#1C2158 is a dark, moderate blue. Relative luminance 0.020; OKLCH L 28.0% C 0.098 H 274.3°. Best body text is #FFFFFF at 14.92:1 contrast (WCAG AA passes).

Color values

HEX	#1C2158
RGB	rgb(28, 33, 88)
HSL	hsl(235, 52%, 23%)
HSV	hsv(235, 68%, 35%)
CMYK	cmyk(68.2%, 62.5%, 0%, 65.5%)
CIE-LAB	lab(15.69, 17.52, -34.00)
CIE-LCH	lch(15.69, 38.25, 297.27°)
OKLab	oklab(28.01% 0.0073 -0.0978)
OKLCH	oklch(28.01% 0.098 274.3)
XYZ	xyz(2.7836, 2.0389, 9.4775)
Luminance	0.0204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2158 #58531C

analogous

#1C3F58 #1C2158 #351C58

triadic

#1C2158 #581C21 #21581C

tetradic

#1C2158 #581C3F #58531C #1C5835

square

#1C2158 #581C3F #58531C #1C5835

split-complementary

#1C2158 #58351C #3F581C

monochromatic

#070917 #0D102A #1C2158 #2B3286 #3A44B5

Accessibility & contrast

On white

14.92

#1C2158 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#1C2158 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2158

14.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2158	#FFFFFF	#000000	##FFFFFF
##1C2158	1.00	14.92	1.41	14.92
#FFFFFF	14.92	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A5A

Deuteranopia (green-blind)

#002557

Tritanopia (blue-blind)

#002E38

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1c2158;
/* rgb */ color: rgb(28, 33, 88);
/* oklch */ color: oklch(28.0% 0.098 274.3);

Tailwind

colors: {
  custom: {
    50: '#605c88',
    500: '#1c2158',
    950: '#000000',
  },
}

SCSS

$custom: #1c2158;
$custom-light: #605c88;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2158",
  "rgb": {
    "r": 28,
    "g": 33,
    "b": 88
  },
  "hsl": {
    "h": 235,
    "s": 51.724,
    "l": 22.745
  },
  "oklch": {
    "l": 0.28012,
    "c": 0.09803,
    "h": 274.3
  },
  "luminance": 0.02039
}

Semantic roles & 50–950 ramp

primary

#1C2158

secondary

#8E8742

accent

#CF4DDB

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05040B

muted

#79797C

Preview Lab

Preview with #1C2158

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

Preview Lab → · Contrast checker → · Palette generator →