#1C5183#1C5183

#1C5183 is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.6% C 0.100 H 250.4°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#1C5183
RGB	rgb(28, 81, 131)
HSL	hsl(209, 65%, 31%)
HSV	hsv(209, 79%, 51%)
CMYK	cmyk(78.6%, 38.2%, 0%, 48.6%)
CIE-LAB	lab(33.50, 1.26, -33.03)
CIE-LCH	lch(33.50, 33.05, 272.19°)
OKLab	oklab(42.64% -0.0336 -0.0941)
OKLCH	oklch(42.64% 0.1 250.4)
XYZ	xyz(7.5165, 7.7696, 22.5719)
Luminance	0.0777 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C5183 #834E1C

analogous

#1C8381 #1C5183 #1C1D83

triadic

#1C5183 #831C51 #51831C

tetradic

#1C5183 #811C83 #834E1C #1D831C

square

#1C5183 #811C83 #834E1C #1D831C

split-complementary

#1C5183 #831C1D #83811C

monochromatic

#06131E #113251 #1C5183 #2770B5 #438FD7

Accessibility & contrast

On white

8.22

#1C5183 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#1C5183 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C5183

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C5183	#FFFFFF	#000000	##FFFFFF
##1C5183	1.00	8.22	2.55	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A5485

Deuteranopia (green-blind)

#2A4A82

Tritanopia (blue-blind)

#005D63

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1c5183;
/* rgb */ color: rgb(28, 81, 131);
/* oklch */ color: oklch(42.6% 0.100 250.4);

Tailwind

colors: {
  custom: {
    50: '#6881a7',
    500: '#1c5183',
    950: '#000000',
  },
}

SCSS

$custom: #1c5183;
$custom-light: #6881a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1c5183",
  "rgb": {
    "r": 28,
    "g": 81,
    "b": 131
  },
  "hsl": {
    "h": 209.126,
    "s": 64.78,
    "l": 31.176
  },
  "oklch": {
    "l": 0.42639,
    "c": 0.09989,
    "h": 250.4
  },
  "luminance": 0.0777
}

Semantic roles & 50–950 ramp

primary

#1C5183

secondary

#B67C45

accent

#9140E8

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1C5183

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

Preview Lab → · Contrast checker → · Palette generator →