#1C437E#1C437E

#1C437E is a dark, moderate blue. Relative luminance 0.058; OKLCH L 38.9% C 0.109 H 258.7°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#1C437E
RGB	rgb(28, 67, 126)
HSL	hsl(216, 64%, 30%)
HSV	hsv(216, 78%, 49%)
CMYK	cmyk(77.8%, 46.8%, 0%, 50.6%)
CIE-LAB	lab(28.82, 8.65, -37.39)
CIE-LCH	lch(28.82, 38.38, 283.02°)
OKLab	oklab(38.9% -0.0214 -0.1072)
OKLCH	oklch(38.9% 0.109 258.7)
XYZ	xyz(6.2506, 5.7668, 20.5183)
Luminance	0.0577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C437E #7E571C

analogous

#1C747E #1C437E #261C7E

triadic

#1C437E #7E1C43 #437E1C

tetradic

#1C437E #7E1C74 #7E571C #1C7E26

square

#1C437E #7E1C74 #7E571C #1C7E26

split-complementary

#1C437E #7E261C #747E1C

monochromatic

#060E1A #11284C #1C437E #275EB0 #407BD5

Accessibility & contrast

On white

9.75

#1C437E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#1C437E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C437E

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C437E	#FFFFFF	#000000	##FFFFFF
##1C437E	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254980

Deuteranopia (green-blind)

#10407D

Tritanopia (blue-blind)

#00515A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1c437e;
/* rgb */ color: rgb(28, 67, 126);
/* oklch */ color: oklch(38.9% 0.109 258.7);

Tailwind

colors: {
  custom: {
    50: '#6776a4',
    500: '#1c437e',
    950: '#000000',
  },
}

SCSS

$custom: #1c437e;
$custom-light: #6776a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c437e",
  "rgb": {
    "r": 28,
    "g": 67,
    "b": 126
  },
  "hsl": {
    "h": 216.122,
    "s": 63.636,
    "l": 30.196
  },
  "oklch": {
    "l": 0.38895,
    "c": 0.1093,
    "h": 258.7
  },
  "luminance": 0.05768
}

Semantic roles & 50–950 ramp

primary

#1C437E

secondary

#B28644

accent

#A541E7

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1C437E

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

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