#1D4F83#1D4F83

#1D4F83 is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 42.2% C 0.102 H 252.2°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#1D4F83
RGB	rgb(29, 79, 131)
HSL	hsl(211, 64%, 31%)
HSV	hsv(211, 78%, 51%)
CMYK	cmyk(77.9%, 39.7%, 0%, 48.6%)
CIE-LAB	lab(32.90, 2.71, -33.97)
CIE-LCH	lch(32.90, 34.08, 274.56°)
OKLab	oklab(42.18% -0.031 -0.0969)
OKLCH	oklch(42.18% 0.102 252.2)
XYZ	xyz(7.3979, 7.4910, 22.5243)
Luminance	0.0749 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4F83 #83511D

analogous

#1D8283 #1D4F83 #1E1D83

triadic

#1D4F83 #831D4F #4F831D

tetradic

#1D4F83 #831D82 #83511D #1D831E

square

#1D4F83 #831D82 #83511D #1D831E

split-complementary

#1D4F83 #831E1D #82831D

monochromatic

#07131F #123151 #1D4F83 #286DB5 #458CD6

Accessibility & contrast

On white

8.41

#1D4F83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1D4F83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4F83

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4F83	#FFFFFF	#000000	##FFFFFF
##1D4F83	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375285

Deuteranopia (green-blind)

#274982

Tritanopia (blue-blind)

#005B62

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1d4f83;
/* rgb */ color: rgb(29, 79, 131);
/* oklch */ color: oklch(42.2% 0.102 252.2);

Tailwind

colors: {
  custom: {
    50: '#697fa7',
    500: '#1d4f83',
    950: '#000000',
  },
}

SCSS

$custom: #1d4f83;
$custom-light: #697fa7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4f83",
  "rgb": {
    "r": 29,
    "g": 79,
    "b": 131
  },
  "hsl": {
    "h": 210.588,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.42179,
    "c": 0.10173,
    "h": 252.2
  },
  "luminance": 0.07492
}

Semantic roles & 50–950 ramp

primary

#1D4F83

secondary

#B67F46

accent

#9641E7

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1D4F83

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

Preview Lab → · Contrast checker → · Palette generator →