#1D5DA8#1D5DA8

#1D5DA8 is a mid, vivid cyan. Relative luminance 0.109; OKLCH L 48.0% C 0.136 H 255.2°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#1D5DA8
RGB	rgb(29, 93, 168)
HSL	hsl(212, 71%, 39%)
HSV	hsv(212, 83%, 66%)
CMYK	cmyk(82.7%, 44.6%, 0%, 34.1%)
CIE-LAB	lab(39.44, 8.24, -45.89)
CIE-LCH	lch(39.44, 46.63, 280.18°)
OKLab	oklab(48% -0.0348 -0.1316)
OKLCH	oklch(48% 0.136 255.2)
XYZ	xyz(11.4863, 10.9157, 38.5397)
Luminance	0.1092 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5DA8 #A8681D

analogous

#1DA2A8 #1D5DA8 #221DA8

triadic

#1D5DA8 #A81D5D #5DA81D

tetradic

#1D5DA8 #A81DA2 #A8681D #1DA822

square

#1D5DA8 #A81DA2 #A8681D #1DA822

split-complementary

#1D5DA8 #A8221D #A2A81D

monochromatic

#0B2340 #144074 #1D5DA8 #287ADA #5C9AE3

Accessibility & contrast

On white

6.60

#1D5DA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#1D5DA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D5DA8

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5DA8	#FFFFFF	#000000	##FFFFFF
##1D5DA8	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3664AB

Deuteranopia (green-blind)

#1957A7

Tritanopia (blue-blind)

#006F7A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1d5da8;
/* rgb */ color: rgb(29, 93, 168);
/* oklch */ color: oklch(48.0% 0.136 255.2);

Tailwind

colors: {
  custom: {
    50: '#718ac2',
    500: '#1d5da8',
    950: '#000000',
  },
}

SCSS

$custom: #1d5da8;
$custom-light: #718ac2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5da8",
  "rgb": {
    "r": 29,
    "g": 93,
    "b": 168
  },
  "hsl": {
    "h": 212.374,
    "s": 70.558,
    "l": 38.627
  },
  "oklch": {
    "l": 0.48002,
    "c": 0.13615,
    "h": 255.2
  },
  "luminance": 0.10917
}

Semantic roles & 50–950 ramp

primary

#1D5DA8

secondary

#C7955A

accent

#9B3AED

background

#F7F8FC

surface

#EDF0F8

border

#C8CBD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1D5DA8

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

Preview Lab → · Contrast checker → · Palette generator →