#1D5B88#1D5B88

#1D5B88 is a mid, moderate cyan. Relative luminance 0.095; OKLCH L 45.5% C 0.096 H 244.5°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#1D5B88
RGB	rgb(29, 91, 136)
HSL	hsl(205, 65%, 32%)
HSV	hsv(205, 79%, 53%)
CMYK	cmyk(78.7%, 33.1%, 0%, 46.7%)
CIE-LAB	lab(36.97, -3.05, -30.60)
CIE-LCH	lch(36.97, 30.75, 264.30°)
OKLab	oklab(45.47% -0.0413 -0.0868)
OKLCH	oklch(45.47% 0.096 244.5)
XYZ	xyz(8.6900, 9.5199, 24.6673)
Luminance	0.0952 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5B88 #884A1D

analogous

#1D8880 #1D5B88 #1D2588

triadic

#1D5B88 #881D5B #5B881D

tetradic

#1D5B88 #801D88 #884A1D #25881D

square

#1D5B88 #801D88 #884A1D #25881D

split-complementary

#1D5B88 #881D25 #88801D

monochromatic

#071723 #123956 #1D5B88 #287DBA #489BD8

Accessibility & contrast

On white

7.23

#1D5B88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#1D5B88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D5B88

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5B88	#FFFFFF	#000000	##FFFFFF
##1D5B88	1.00	7.23	2.90	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#465C8A

Deuteranopia (green-blind)

#375387

Tritanopia (blue-blind)

#00666B

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1d5b88;
/* rgb */ color: rgb(29, 91, 136);
/* oklch */ color: oklch(45.5% 0.096 244.5);

Tailwind

colors: {
  custom: {
    50: '#6a89ab',
    500: '#1d5b88',
    950: '#000000',
  },
}

SCSS

$custom: #1d5b88;
$custom-light: #6a89ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5b88",
  "rgb": {
    "r": 29,
    "g": 91,
    "b": 136
  },
  "hsl": {
    "h": 205.234,
    "s": 64.848,
    "l": 32.353
  },
  "oklch": {
    "l": 0.45465,
    "c": 0.09616,
    "h": 244.5
  },
  "luminance": 0.09521
}

Semantic roles & 50–950 ramp

primary

#1D5B88

secondary

#BA7747

accent

#8740E8

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1D5B88

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

Preview Lab → · Contrast checker → · Palette generator →