#1C4287#1C4287

#1C4287 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.3% C 0.124 H 261.1°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#1C4287
RGB	rgb(28, 66, 135)
HSL	hsl(219, 66%, 32%)
HSV	hsv(219, 79%, 53%)
CMYK	cmyk(79.3%, 51.1%, 0%, 47.1%)
CIE-LAB	lab(29.14, 13.00, -42.48)
CIE-LCH	lch(29.14, 44.42, 287.01°)
OKLab	oklab(39.34% -0.019 -0.1221)
OKLCH	oklch(39.34% 0.124 261.1)
XYZ	xyz(6.7987, 5.8918, 23.6959)
Luminance	0.0589 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4287 #87611C

analogous

#1C7787 #1C4287 #2C1C87

triadic

#1C4287 #871C42 #42871C

tetradic

#1C4287 #871C77 #87611C #1C872C

square

#1C4287 #871C77 #87611C #1C872C

split-complementary

#1C4287 #872C1C #77871C

monochromatic

#071022 #112954 #1C4287 #275BBA #4579D8

Accessibility & contrast

On white

9.64

#1C4287 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1C4287 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4287

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4287	#FFFFFF	#000000	##FFFFFF
##1C4287	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194A8A

Deuteranopia (green-blind)

#004086

Tritanopia (blue-blind)

#00535E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1c4287;
/* rgb */ color: rgb(28, 66, 135);
/* oklch */ color: oklch(39.3% 0.124 261.1);

Tailwind

colors: {
  custom: {
    50: '#6975aa',
    500: '#1c4287',
    950: '#000000',
  },
}

SCSS

$custom: #1c4287;
$custom-light: #6975aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4287",
  "rgb": {
    "r": 28,
    "g": 66,
    "b": 135
  },
  "hsl": {
    "h": 218.692,
    "s": 65.644,
    "l": 31.961
  },
  "oklch": {
    "l": 0.39343,
    "c": 0.12362,
    "h": 261.1
  },
  "luminance": 0.05893
}

Semantic roles & 50–950 ramp

primary

#1C4287

secondary

#BA9045

accent

#AC3FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1C4287

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

Preview Lab → · Contrast checker → · Palette generator →