#1C4288#1C4288

#1C4288 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.4% C 0.125 H 261.3°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#1C4288
RGB	rgb(28, 66, 136)
HSL	hsl(219, 66%, 32%)
HSV	hsv(219, 79%, 53%)
CMYK	cmyk(79.4%, 51.5%, 0%, 46.7%)
CIE-LAB	lab(29.21, 13.40, -42.98)
CIE-LCH	lch(29.21, 45.02, 287.32°)
OKLab	oklab(39.42% -0.0189 -0.1236)
OKLCH	oklch(39.42% 0.125 261.3)
XYZ	xyz(6.8694, 5.9201, 24.0684)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4288 #88621C

analogous

#1C7888 #1C4288 #2C1C88

triadic

#1C4288 #881C42 #42881C

tetradic

#1C4288 #881C78 #88621C #1C882C

square

#1C4288 #881C78 #88621C #1C882C

split-complementary

#1C4288 #882C1C #78881C

monochromatic

#071122 #122955 #1C4288 #265BBB #4679D9

Accessibility & contrast

On white

9.61

#1C4288 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1C4288 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4288

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4288	#FFFFFF	#000000	##FFFFFF
##1C4288	1.00	9.61	2.18	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#174A8B

Deuteranopia (green-blind)

#004087

Tritanopia (blue-blind)

#00535E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1c4288;
/* rgb */ color: rgb(28, 66, 136);
/* oklch */ color: oklch(39.4% 0.125 261.3);

Tailwind

colors: {
  custom: {
    50: '#6a75ab',
    500: '#1c4288',
    950: '#000000',
  },
}

SCSS

$custom: #1c4288;
$custom-light: #6a75ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4288",
  "rgb": {
    "r": 28,
    "g": 66,
    "b": 136
  },
  "hsl": {
    "h": 218.889,
    "s": 65.854,
    "l": 32.157
  },
  "oklch": {
    "l": 0.39421,
    "c": 0.12506,
    "h": 261.3
  },
  "luminance": 0.05921
}

Semantic roles & 50–950 ramp

primary

#1C4288

secondary

#BA9145

accent

#AD3FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1C4288

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

Preview Lab → · Contrast checker → · Palette generator →