#1D4B83#1D4B83

#1D4B83 is a dark, moderate cyan. Relative luminance 0.069; OKLCH L 41.2% C 0.106 H 255.2°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#1D4B83
RGB	rgb(29, 75, 131)
HSL	hsl(213, 64%, 31%)
HSV	hsv(213, 78%, 51%)
CMYK	cmyk(77.9%, 42.7%, 0%, 48.6%)
CIE-LAB	lab(31.65, 5.37, -35.97)
CIE-LCH	lch(31.65, 36.36, 278.49°)
OKLab	oklab(41.2% -0.0272 -0.1028)
OKLCH	oklch(41.2% 0.106 255.2)
XYZ	xyz(7.1180, 6.9312, 22.4311)
Luminance	0.0693 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4B83 #83551D

analogous

#1D7E83 #1D4B83 #221D83

triadic

#1D4B83 #831D4B #4B831D

tetradic

#1D4B83 #831D7E #83551D #1D8322

square

#1D4B83 #831D7E #83551D #1D8322

split-complementary

#1D4B83 #83221D #7E831D

monochromatic

#07121F #122E51 #1D4B83 #2868B5 #4586D6

Accessibility & contrast

On white

8.80

#1D4B83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1D4B83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4B83

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4B83	#FFFFFF	#000000	##FFFFFF
##1D4B83	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#305085

Deuteranopia (green-blind)

#1E4682

Tritanopia (blue-blind)

#005860

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1d4b83;
/* rgb */ color: rgb(29, 75, 131);
/* oklch */ color: oklch(41.2% 0.106 255.2);

Tailwind

colors: {
  custom: {
    50: '#697ca7',
    500: '#1d4b83',
    950: '#000000',
  },
}

SCSS

$custom: #1d4b83;
$custom-light: #697ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4b83",
  "rgb": {
    "r": 29,
    "g": 75,
    "b": 131
  },
  "hsl": {
    "h": 212.941,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.41204,
    "c": 0.10634,
    "h": 255.2
  },
  "luminance": 0.06932
}

Semantic roles & 50–950 ramp

primary

#1D4B83

secondary

#B68346

accent

#9C41E7

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1D4B83

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

Preview Lab → · Contrast checker → · Palette generator →