#1D4658#1D4658

#1D4658 is a dark, muted cyan. Relative luminance 0.053; OKLCH L 37.3% C 0.055 H 229.5°. Best body text is #FFFFFF at 10.15:1 contrast (WCAG AA passes).

Color values

HEX	#1D4658
RGB	rgb(29, 70, 88)
HSL	hsl(198, 50%, 23%)
HSV	hsv(198, 67%, 35%)
CMYK	cmyk(67%, 20.5%, 0%, 65.5%)
CIE-LAB	lab(27.70, -8.04, -14.98)
CIE-LCH	lch(27.70, 17.00, 241.77°)
OKLab	oklab(37.33% -0.0357 -0.0418)
OKLCH	oklch(37.33% 0.055 229.5)
XYZ	xyz(4.4576, 5.3457, 10.0275)
Luminance	0.0535 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4658 #582F1D

analogous

#1D584C #1D4658 #1D2858

triadic

#1D4658 #581D46 #46581D

tetradic

#1D4658 #4C1D58 #582F1D #28581D

square

#1D4658 #4C1D58 #582F1D #28581D

split-complementary

#1D4658 #581D28 #584C1D

monochromatic

#081217 #0E212A #1D4658 #2C6B86 #3B8FB4

Accessibility & contrast

On white

10.15

#1D4658 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#1D4658 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4658

10.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4658	#FFFFFF	#000000	##FFFFFF
##1D4658	1.00	10.15	2.07	10.15
#FFFFFF	10.15	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D4559

Deuteranopia (green-blind)

#353F58

Tritanopia (blue-blind)

#004B4C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1d4658;
/* rgb */ color: rgb(29, 70, 88);
/* oklch */ color: oklch(37.3% 0.055 229.5);

Tailwind

colors: {
  custom: {
    50: '#607987',
    500: '#1d4658',
    950: '#000000',
  },
}

SCSS

$custom: #1d4658;
$custom-light: #607987;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4658",
  "rgb": {
    "r": 29,
    "g": 70,
    "b": 88
  },
  "hsl": {
    "h": 198.305,
    "s": 50.427,
    "l": 22.941
  },
  "oklch": {
    "l": 0.37333,
    "c": 0.05499,
    "h": 229.5
  },
  "luminance": 0.05346
}

Semantic roles & 50–950 ramp

primary

#1D4658

secondary

#8D5A44

accent

#794EDA

background

#F5F7F8

surface

#EAEDEF

border

#C6C8CA

text

#05090B

muted

#797B7C

Preview Lab

Preview with #1D4658

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

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