#1C4E9D#1C4E9D

#1C4E9D is a dark, vivid blue. Relative luminance 0.081; OKLCH L 43.8% C 0.140 H 259.5°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#1C4E9D
RGB	rgb(28, 78, 157)
HSL	hsl(217, 70%, 36%)
HSV	hsv(217, 82%, 62%)
CMYK	cmyk(82.2%, 50.3%, 0%, 38.4%)
CIE-LAB	lab(34.25, 13.70, -47.67)
CIE-LCH	lch(34.25, 49.60, 286.03°)
OKLab	oklab(43.76% -0.0254 -0.1372)
OKLCH	oklch(43.76% 0.14 259.5)
XYZ	xyz(9.2869, 8.1289, 32.9713)
Luminance	0.0813 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4E9D #9D6B1C

analogous

#1C8F9D #1C4E9D #2A1C9D

triadic

#1C4E9D #9D1C4E #4E9D1C

tetradic

#1C4E9D #9D1C8F #9D6B1C #1C9D2A

square

#1C4E9D #9D1C8F #9D6B1C #1C9D2A

split-complementary

#1C4E9D #9D2A1C #8F9D1C

monochromatic

#091A35 #133469 #1C4E9D #2568D1 #538AE0

Accessibility & contrast

On white

8.00

#1C4E9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#1C4E9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4E9D

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4E9D	#FFFFFF	#000000	##FFFFFF
##1C4E9D	1.00	8.00	2.63	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E57A0

Deuteranopia (green-blind)

#004B9B

Tritanopia (blue-blind)

#00616E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1c4e9d;
/* rgb */ color: rgb(28, 78, 157);
/* oklch */ color: oklch(43.8% 0.140 259.5);

Tailwind

colors: {
  custom: {
    50: '#6e7eba',
    500: '#1c4e9d',
    950: '#000000',
  },
}

SCSS

$custom: #1c4e9d;
$custom-light: #6e7eba;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4e9d",
  "rgb": {
    "r": 28,
    "g": 78,
    "b": 157
  },
  "hsl": {
    "h": 216.744,
    "s": 69.73,
    "l": 36.275
  },
  "oklch": {
    "l": 0.43757,
    "c": 0.13951,
    "h": 259.5
  },
  "luminance": 0.0813
}

Semantic roles & 50–950 ramp

primary

#1C4E9D

secondary

#C39751

accent

#A83BED

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A12

muted

#7B7C81

Preview Lab

Preview with #1C4E9D

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

Preview Lab → · Contrast checker → · Palette generator →