#1C4D83#1C4D83

#1C4D83 is a dark, moderate cyan. Relative luminance 0.072; OKLCH L 41.7% C 0.104 H 253.4°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#1C4D83
RGB	rgb(28, 77, 131)
HSL	hsl(211, 65%, 31%)
HSV	hsv(211, 79%, 51%)
CMYK	cmyk(78.6%, 41.2%, 0%, 48.6%)
CIE-LAB	lab(32.24, 3.90, -35.02)
CIE-LCH	lch(32.24, 35.24, 276.35°)
OKLab	oklab(41.66% -0.0297 -0.1)
OKLCH	oklch(41.66% 0.104 253.4)
XYZ	xyz(7.2280, 7.1925, 22.4757)
Luminance	0.0719 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4D83 #83521C

analogous

#1C8083 #1C4D83 #1E1C83

triadic

#1C4D83 #831C4D #4D831C

tetradic

#1C4D83 #831C80 #83521C #1C831E

square

#1C4D83 #831C80 #83521C #1C831E

split-complementary

#1C4D83 #831E1C #80831C

monochromatic

#06121E #112F51 #1C4D83 #276BB5 #4389D7

Accessibility & contrast

On white

8.61

#1C4D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#1C4D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4D83

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4D83	#FFFFFF	#000000	##FFFFFF
##1C4D83	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#335185

Deuteranopia (green-blind)

#224882

Tritanopia (blue-blind)

#005A61

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1c4d83;
/* rgb */ color: rgb(28, 77, 131);
/* oklch */ color: oklch(41.7% 0.104 253.4);

Tailwind

colors: {
  custom: {
    50: '#687ea7',
    500: '#1c4d83',
    950: '#000000',
  },
}

SCSS

$custom: #1c4d83;
$custom-light: #687ea7;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4d83",
  "rgb": {
    "r": 28,
    "g": 77,
    "b": 131
  },
  "hsl": {
    "h": 211.456,
    "s": 64.78,
    "l": 31.176
  },
  "oklch": {
    "l": 0.41656,
    "c": 0.10434,
    "h": 253.4
  },
  "luminance": 0.07193
}

Semantic roles & 50–950 ramp

primary

#1C4D83

secondary

#B68045

accent

#9840E8

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1C4D83

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

Preview Lab → · Contrast checker → · Palette generator →