#1C3071#1C3071

#1C3071 is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.5% C 0.115 H 267.0°. Best body text is #FFFFFF at 12.28:1 contrast (WCAG AA passes).

Color values

HEX	#1C3071
RGB	rgb(28, 48, 113)
HSL	hsl(226, 60%, 28%)
HSV	hsv(226, 75%, 44%)
CMYK	cmyk(75.2%, 57.5%, 0%, 55.7%)
CIE-LAB	lab(22.13, 16.72, -39.94)
CIE-LCH	lch(22.13, 43.30, 292.71°)
OKLab	oklab(33.49% -0.006 -0.115)
OKLCH	oklch(33.49% 0.115 267)
XYZ	xyz(4.5154, 3.5526, 16.0673)
Luminance	0.0355 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3071 #715D1C

analogous

#1C5B71 #1C3071 #321C71

triadic

#1C3071 #711C30 #30711C

tetradic

#1C3071 #711C5B #715D1C #1C7132

square

#1C3071 #711C5B #715D1C #1C7132

split-complementary

#1C3071 #71321C #5B711C

monochromatic

#060A19 #101B40 #1C3071 #2845A2 #395CCE

Accessibility & contrast

On white

12.28

#1C3071 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1C3071 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3071

12.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3071	#FFFFFF	#000000	##FFFFFF
##1C3071	1.00	12.28	1.71	12.28
#FFFFFF	12.28	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003973

Deuteranopia (green-blind)

#003170

Tritanopia (blue-blind)

#00404B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1c3071;
/* rgb */ color: rgb(28, 48, 113);
/* oklch */ color: oklch(33.5% 0.115 267.0);

Tailwind

colors: {
  custom: {
    50: '#65679a',
    500: '#1c3071',
    950: '#000000',
  },
}

SCSS

$custom: #1c3071;
$custom-light: #65679a;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3071",
  "rgb": {
    "r": 28,
    "g": 48,
    "b": 113
  },
  "hsl": {
    "h": 225.882,
    "s": 60.284,
    "l": 27.647
  },
  "oklch": {
    "l": 0.33491,
    "c": 0.11519,
    "h": 267
  },
  "luminance": 0.03553
}

Semantic roles & 50–950 ramp

primary

#1C3071

secondary

#A68E43

accent

#BE44E3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1C3071

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

Preview Lab → · Contrast checker → · Palette generator →