#1D5FB3#1D5FB3

#1D5FB3 is a mid, vivid cyan. Relative luminance 0.117; OKLCH L 49.2% C 0.149 H 256.7°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#1D5FB3
RGB	rgb(29, 95, 179)
HSL	hsl(214, 72%, 41%)
HSV	hsv(214, 84%, 70%)
CMYK	cmyk(83.8%, 46.9%, 0%, 29.8%)
CIE-LAB	lab(40.73, 11.30, -50.30)
CIE-LCH	lch(40.73, 51.55, 282.66°)
OKLab	oklab(49.23% -0.0343 -0.1446)
OKLCH	oklch(49.23% 0.149 256.7)
XYZ	xyz(12.7326, 11.6987, 44.2261)
Luminance	0.1170 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5FB3 #B3711D

analogous

#1DAAB3 #1D5FB3 #261DB3

triadic

#1D5FB3 #B31D5F #5FB31D

tetradic

#1D5FB3 #B31DAA #B3711D #1DB326

square

#1D5FB3 #B31DAA #B3711D #1DB326

split-complementary

#1D5FB3 #B3261D #AAB31D

monochromatic

#0C274A #14437E #1D5FB3 #307CDD #649DE6

Accessibility & contrast

On white

6.29

#1D5FB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#1D5FB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D5FB3

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5FB3	#FFFFFF	#000000	##FFFFFF
##1D5FB3	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3067B6

Deuteranopia (green-blind)

#015AB1

Tritanopia (blue-blind)

#007380

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #1d5fb3;
/* rgb */ color: rgb(29, 95, 179);
/* oklch */ color: oklch(49.2% 0.149 256.7);

Tailwind

colors: {
  custom: {
    50: '#748bca',
    500: '#1d5fb3',
    950: '#000000',
  },
}

SCSS

$custom: #1d5fb3;
$custom-light: #748bca;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5fb3",
  "rgb": {
    "r": 29,
    "g": 95,
    "b": 179
  },
  "hsl": {
    "h": 213.6,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.49231,
    "c": 0.14856,
    "h": 256.7
  },
  "luminance": 0.117
}

Semantic roles & 50–950 ramp

primary

#1D5FB3

secondary

#CB9C61

accent

#9F39EF

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #1D5FB3

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

Preview Lab → · Contrast checker → · Palette generator →