#1C4187#1C4187

#1C4187 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.1% C 0.125 H 261.6°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#1C4187
RGB	rgb(28, 65, 135)
HSL	hsl(219, 66%, 32%)
HSV	hsv(219, 79%, 53%)
CMYK	cmyk(79.3%, 51.9%, 0%, 47.1%)
CIE-LAB	lab(28.84, 13.69, -42.96)
CIE-LCH	lch(28.84, 45.09, 287.67°)
OKLab	oklab(39.12% -0.0182 -0.1236)
OKLCH	oklch(39.12% 0.125 261.6)
XYZ	xyz(6.7408, 5.7760, 23.6766)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4187 #87621C

analogous

#1C7787 #1C4187 #2C1C87

triadic

#1C4187 #871C41 #41871C

tetradic

#1C4187 #871C77 #87621C #1C872C

square

#1C4187 #871C77 #87621C #1C872C

split-complementary

#1C4187 #872C1C #77871C

monochromatic

#071022 #112954 #1C4187 #2759BA #4578D8

Accessibility & contrast

On white

9.74

#1C4187 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1C4187 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4187

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4187	#FFFFFF	#000000	##FFFFFF
##1C4187	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16498A

Deuteranopia (green-blind)

#003F86

Tritanopia (blue-blind)

#00525D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1c4187;
/* rgb */ color: rgb(28, 65, 135);
/* oklch */ color: oklch(39.1% 0.125 261.6);

Tailwind

colors: {
  custom: {
    50: '#6a75aa',
    500: '#1c4187',
    950: '#000000',
  },
}

SCSS

$custom: #1c4187;
$custom-light: #6a75aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4187",
  "rgb": {
    "r": 28,
    "g": 65,
    "b": 135
  },
  "hsl": {
    "h": 219.252,
    "s": 65.644,
    "l": 31.961
  },
  "oklch": {
    "l": 0.39115,
    "c": 0.12491,
    "h": 261.6
  },
  "luminance": 0.05777
}

Semantic roles & 50–950 ramp

primary

#1C4187

secondary

#BA9145

accent

#AE3FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1C4187

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

Preview Lab → · Contrast checker → · Palette generator →