#1D5577#1D5577

#1D5577 is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.0% C 0.080 H 239.5°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#1D5577
RGB	rgb(29, 85, 119)
HSL	hsl(203, 61%, 29%)
HSV	hsv(203, 76%, 47%)
CMYK	cmyk(75.6%, 28.6%, 0%, 53.3%)
CIE-LAB	lab(34.17, -5.83, -24.55)
CIE-LCH	lch(34.17, 25.23, 256.65°)
OKLab	oklab(42.97% -0.0409 -0.0693)
OKLCH	oklch(42.97% 0.08 239.5)
XYZ	xyz(7.0837, 8.0893, 18.6372)
Luminance	0.0809 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5577 #773F1D

analogous

#1D776C #1D5577 #1D2877

triadic

#1D5577 #771D55 #55771D

tetradic

#1D5577 #6C1D77 #773F1D #28771D

square

#1D5577 #6C1D77 #773F1D #28771D

split-complementary

#1D5577 #771D28 #776C1D

monochromatic

#061219 #113246 #1D5577 #2978A8 #3E99D0

Accessibility & contrast

On white

8.02

#1D5577 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#1D5577 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5577

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5577	#FFFFFF	#000000	##FFFFFF
##1D5577	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#455579

Deuteranopia (green-blind)

#394D76

Tritanopia (blue-blind)

#005E61

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1d5577;
/* rgb */ color: rgb(29, 85, 119);
/* oklch */ color: oklch(43.0% 0.080 239.5);

Tailwind

colors: {
  custom: {
    50: '#66849e',
    500: '#1d5577',
    950: '#000000',
  },
}

SCSS

$custom: #1d5577;
$custom-light: #66849e;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5577",
  "rgb": {
    "r": 29,
    "g": 85,
    "b": 119
  },
  "hsl": {
    "h": 202.667,
    "s": 60.811,
    "l": 29.02
  },
  "oklch": {
    "l": 0.42965,
    "c": 0.08046,
    "h": 239.5
  },
  "luminance": 0.0809
}

Semantic roles & 50–950 ramp

primary

#1D5577

secondary

#AB6B45

accent

#8044E4

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #1D5577

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

Preview Lab → · Contrast checker → · Palette generator →