#1C4590#1C4590

#1C4590 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 40.7% C 0.133 H 261.2°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#1C4590
RGB	rgb(28, 69, 144)
HSL	hsl(219, 67%, 34%)
HSV	hsv(219, 81%, 56%)
CMYK	cmyk(80.6%, 52.1%, 0%, 43.5%)
CIE-LAB	lab(30.68, 14.58, -45.53)
CIE-LCH	lch(30.68, 47.81, 287.75°)
OKLab	oklab(40.73% -0.0202 -0.1311)
OKLCH	oklch(40.73% 0.133 261.2)
XYZ	xyz(7.6392, 6.5158, 27.2352)
Luminance	0.0652 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4590 #90671C

analogous

#1C7F90 #1C4590 #2D1C90

triadic

#1C4590 #901C45 #45901C

tetradic

#1C4590 #901C7F #90671C #1C902D

square

#1C4590 #901C7F #90671C #1C902D

split-complementary

#1C4590 #902D1C #7F901C

monochromatic

#08142A #122C5D #1C4590 #265EC3 #4A7EDC

Accessibility & contrast

On white

9.12

#1C4590 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#1C4590 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4590

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4590	#FFFFFF	#000000	##FFFFFF
##1C4590	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154E93

Deuteranopia (green-blind)

#00438F

Tritanopia (blue-blind)

#005763

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1c4590;
/* rgb */ color: rgb(28, 69, 144);
/* oklch */ color: oklch(40.7% 0.133 261.2);

Tailwind

colors: {
  custom: {
    50: '#6c78b1',
    500: '#1c4590',
    950: '#000000',
  },
}

SCSS

$custom: #1c4590;
$custom-light: #6c78b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4590",
  "rgb": {
    "r": 28,
    "g": 69,
    "b": 144
  },
  "hsl": {
    "h": 218.793,
    "s": 67.442,
    "l": 33.725
  },
  "oklch": {
    "l": 0.40728,
    "c": 0.13264,
    "h": 261.2
  },
  "luminance": 0.06517
}

Semantic roles & 50–950 ramp

primary

#1C4590

secondary

#BE954A

accent

#AD3DEA

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1C4590

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

Preview Lab → · Contrast checker → · Palette generator →