#1C4989#1C4989

#1C4989 is a dark, moderate blue. Relative luminance 0.068; OKLCH L 41.1% C 0.118 H 257.9°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#1C4989
RGB	rgb(28, 73, 137)
HSL	hsl(215, 66%, 32%)
HSV	hsv(215, 80%, 54%)
CMYK	cmyk(79.6%, 46.7%, 0%, 46.3%)
CIE-LAB	lab(31.39, 9.01, -40.09)
CIE-LCH	lch(31.39, 41.09, 282.66°)
OKLab	oklab(41.12% -0.0247 -0.115)
OKLCH	oklch(41.12% 0.118 257.9)
XYZ	xyz(7.3751, 6.8172, 24.5892)
Luminance	0.0682 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4989 #895C1C

analogous

#1C8089 #1C4989 #251C89

triadic

#1C4989 #891C49 #49891C

tetradic

#1C4989 #891C80 #895C1C #1C8925

square

#1C4989 #891C80 #895C1C #1C8925

split-complementary

#1C4989 #89251C #80891C

monochromatic

#071323 #122E56 #1C4989 #2664BC #4683D9

Accessibility & contrast

On white

8.88

#1C4989 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#1C4989 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4989

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4989	#FFFFFF	#000000	##FFFFFF
##1C4989	1.00	8.88	2.36	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274F8B

Deuteranopia (green-blind)

#0E4588

Tritanopia (blue-blind)

#005862

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1c4989;
/* rgb */ color: rgb(28, 73, 137);
/* oklch */ color: oklch(41.1% 0.118 257.9);

Tailwind

colors: {
  custom: {
    50: '#6a7bac',
    500: '#1c4989',
    950: '#000000',
  },
}

SCSS

$custom: #1c4989;
$custom-light: #6a7bac;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4989",
  "rgb": {
    "r": 28,
    "g": 73,
    "b": 137
  },
  "hsl": {
    "h": 215.229,
    "s": 66.061,
    "l": 32.353
  },
  "oklch": {
    "l": 0.41116,
    "c": 0.11762,
    "h": 257.9
  },
  "luminance": 0.06818
}

Semantic roles & 50–950 ramp

primary

#1C4989

secondary

#BB8B46

accent

#A33FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1C4989

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

Preview Lab → · Contrast checker → · Palette generator →