#1C3F7E#1C3F7E

#1C3F7E is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.0% C 0.114 H 261.0°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#1C3F7E
RGB	rgb(28, 63, 126)
HSL	hsl(219, 64%, 30%)
HSV	hsv(219, 78%, 49%)
CMYK	cmyk(77.8%, 50%, 0%, 50.6%)
CIE-LAB	lab(27.59, 11.41, -39.36)
CIE-LCH	lch(27.59, 40.98, 286.17°)
OKLab	oklab(37.96% -0.0178 -0.113)
OKLCH	oklch(37.96% 0.114 261)
XYZ	xyz(6.0209, 5.3076, 20.4418)
Luminance	0.0531 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3F7E #7E5B1C

analogous

#1C707E #1C3F7E #2A1C7E

triadic

#1C3F7E #7E1C3F #3F7E1C

tetradic

#1C3F7E #7E1C70 #7E5B1C #1C7E2A

square

#1C3F7E #7E1C70 #7E5B1C #1C7E2A

split-complementary

#1C3F7E #7E2A1C #707E1C

monochromatic

#060D1A #11264C #1C3F7E #2758B0 #4075D5

Accessibility & contrast

On white

10.19

#1C3F7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1C3F7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3F7E

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3F7E	#FFFFFF	#000000	##FFFFFF
##1C3F7E	1.00	10.19	2.06	10.19
#FFFFFF	10.19	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4680

Deuteranopia (green-blind)

#003D7D

Tritanopia (blue-blind)

#004E58

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1c3f7e;
/* rgb */ color: rgb(28, 63, 126);
/* oklch */ color: oklch(38.0% 0.114 261.0);

Tailwind

colors: {
  custom: {
    50: '#6773a4',
    500: '#1c3f7e',
    950: '#000000',
  },
}

SCSS

$custom: #1c3f7e;
$custom-light: #6773a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3f7e",
  "rgb": {
    "r": 28,
    "g": 63,
    "b": 126
  },
  "hsl": {
    "h": 218.571,
    "s": 63.636,
    "l": 30.196
  },
  "oklch": {
    "l": 0.37955,
    "c": 0.11442,
    "h": 261
  },
  "luminance": 0.05308
}

Semantic roles & 50–950 ramp

primary

#1C3F7E

secondary

#B28B44

accent

#AC41E7

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1C3F7E

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

Preview Lab → · Contrast checker → · Palette generator →