#1D4E63#1D4E63

#1D4E63 is a dark, moderate cyan. Relative luminance 0.066; OKLCH L 40.1% C 0.063 H 229.6°. Best body text is #FFFFFF at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#1D4E63
RGB	rgb(29, 78, 99)
HSL	hsl(198, 55%, 25%)
HSV	hsv(198, 71%, 39%)
CMYK	cmyk(70.7%, 21.2%, 0%, 61.2%)
CIE-LAB	lab(30.90, -8.98, -17.08)
CIE-LCH	lch(30.90, 19.30, 242.27°)
OKLab	oklab(40.05% -0.0407 -0.0478)
OKLCH	oklch(40.05% 0.063 229.6)
XYZ	xyz(5.4823, 6.6103, 12.7889)
Luminance	0.0661 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4E63 #63321D

analogous

#1D6355 #1D4E63 #1D2B63

triadic

#1D4E63 #631D4E #4E631D

tetradic

#1D4E63 #551D63 #63321D #2B631D

square

#1D4E63 #551D63 #63321D #2B631D

split-complementary

#1D4E63 #631D2B #63551D

monochromatic

#071318 #0F2934 #1D4E63 #2B7392 #3999C2

Accessibility & contrast

On white

9.04

#1D4E63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#1D4E63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4E63

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4E63	#FFFFFF	#000000	##FFFFFF
##1D4E63	1.00	9.04	2.32	9.04
#FFFFFF	9.04	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#434D64

Deuteranopia (green-blind)

#3A4663

Tritanopia (blue-blind)

#005455

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1d4e63;
/* rgb */ color: rgb(29, 78, 99);
/* oklch */ color: oklch(40.1% 0.063 229.6);

Tailwind

colors: {
  custom: {
    50: '#627f8f',
    500: '#1d4e63',
    950: '#000000',
  },
}

SCSS

$custom: #1d4e63;
$custom-light: #627f8f;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4e63",
  "rgb": {
    "r": 29,
    "g": 78,
    "b": 99
  },
  "hsl": {
    "h": 198,
    "s": 54.688,
    "l": 25.098
  },
  "oklch": {
    "l": 0.40054,
    "c": 0.06281,
    "h": 229.6
  },
  "luminance": 0.06611
}

Semantic roles & 50–950 ramp

primary

#1D4E63

secondary

#985D44

accent

#764ADE

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#060A0C

muted

#7A7C7D

Preview Lab

Preview with #1D4E63

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

Preview Lab → · Contrast checker → · Palette generator →