#1D5CB3#1D5CB3

#1D5CB3 is a mid, vivid cyan. Relative luminance 0.112; OKLCH L 48.6% C 0.152 H 257.8°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#1D5CB3
RGB	rgb(29, 92, 179)
HSL	hsl(215, 72%, 41%)
HSV	hsv(215, 84%, 70%)
CMYK	cmyk(83.8%, 48.6%, 0%, 29.8%)
CIE-LAB	lab(39.86, 13.26, -51.70)
CIE-LCH	lch(39.86, 53.38, 284.38°)
OKLab	oklab(48.56% -0.032 -0.1487)
OKLCH	oklch(48.56% 0.152 257.8)
XYZ	xyz(12.4675, 11.1686, 44.1377)
Luminance	0.1117 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5CB3 #B3741D

analogous

#1DA7B3 #1D5CB3 #291DB3

triadic

#1D5CB3 #B31D5C #5CB31D

tetradic

#1D5CB3 #B31DA7 #B3741D #1DB329

square

#1D5CB3 #B31DA7 #B3741D #1DB329

split-complementary

#1D5CB3 #B3291D #A7B31D

monochromatic

#0C264A #14417E #1D5CB3 #3079DD #649BE6

Accessibility & contrast

On white

6.49

#1D5CB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#1D5CB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D5CB3

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5CB3	#FFFFFF	#000000	##FFFFFF
##1D5CB3	1.00	6.49	3.23	6.49
#FFFFFF	6.49	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2965B6

Deuteranopia (green-blind)

#0058B1

Tritanopia (blue-blind)

#00717F

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #1d5cb3;
/* rgb */ color: rgb(29, 92, 179);
/* oklch */ color: oklch(48.6% 0.152 257.8);

Tailwind

colors: {
  custom: {
    50: '#7489ca',
    500: '#1d5cb3',
    950: '#000000',
  },
}

SCSS

$custom: #1d5cb3;
$custom-light: #7489ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5cb3",
  "rgb": {
    "r": 29,
    "g": 92,
    "b": 179
  },
  "hsl": {
    "h": 214.8,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.48561,
    "c": 0.15215,
    "h": 257.8
  },
  "luminance": 0.1117
}

Semantic roles & 50–950 ramp

primary

#1D5CB3

secondary

#CB9E61

accent

#A239EF

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1D5CB3

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

Preview Lab → · Contrast checker → · Palette generator →