#1D5B9D#1D5B9D

#1D5B9D is a mid, vivid cyan. Relative luminance 0.102; OKLCH L 46.8% C 0.124 H 253.3°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#1D5B9D
RGB	rgb(29, 91, 157)
HSL	hsl(211, 69%, 36%)
HSV	hsv(211, 82%, 62%)
CMYK	cmyk(81.5%, 42%, 0%, 38.4%)
CIE-LAB	lab(38.16, 5.18, -41.39)
CIE-LCH	lch(38.16, 41.71, 277.14°)
OKLab	oklab(46.79% -0.0356 -0.1184)
OKLCH	oklch(46.79% 0.124 253.3)
XYZ	xyz(10.3313, 10.1764, 33.3115)
Luminance	0.1018 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5B9D #9D5F1D

analogous

#1D9B9D #1D5B9D #1F1D9D

triadic

#1D5B9D #9D1D5B #5B9D1D

tetradic

#1D5B9D #9D1D9B #9D5F1D #1D9D1F

square

#1D5B9D #9D1D9B #9D5F1D #1D9D1F

split-complementary

#1D5B9D #9D1F1D #9B9D1D

monochromatic

#0A1F36 #133D69 #1D5B9D #2779D1 #5598E0

Accessibility & contrast

On white

6.92

#1D5B9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#1D5B9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D5B9D

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5B9D	#FFFFFF	#000000	##FFFFFF
##1D5B9D	1.00	6.92	3.04	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A60A0

Deuteranopia (green-blind)

#24559C

Tritanopia (blue-blind)

#006B74

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #1d5b9d;
/* rgb */ color: rgb(29, 91, 157);
/* oklch */ color: oklch(46.8% 0.124 253.3);

Tailwind

colors: {
  custom: {
    50: '#6e88ba',
    500: '#1d5b9d',
    950: '#000000',
  },
}

SCSS

$custom: #1d5b9d;
$custom-light: #6e88ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5b9d",
  "rgb": {
    "r": 29,
    "g": 91,
    "b": 157
  },
  "hsl": {
    "h": 210.938,
    "s": 68.817,
    "l": 36.471
  },
  "oklch": {
    "l": 0.46786,
    "c": 0.12365,
    "h": 253.3
  },
  "luminance": 0.10178
}

Semantic roles & 50–950 ramp

primary

#1D5B9D

secondary

#C38D53

accent

#973CEC

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #1D5B9D

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

Preview Lab → · Contrast checker → · Palette generator →