#1D5DAA#1D5DAA

#1D5DAA is a mid, vivid cyan. Relative luminance 0.110; OKLCH L 48.1% C 0.139 H 255.6°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#1D5DAA
RGB	rgb(29, 93, 170)
HSL	hsl(213, 71%, 39%)
HSV	hsv(213, 83%, 67%)
CMYK	cmyk(82.9%, 45.3%, 0%, 33.3%)
CIE-LAB	lab(39.56, 9.04, -46.87)
CIE-LCH	lch(39.56, 47.74, 280.91°)
OKLab	oklab(48.14% -0.0344 -0.1345)
OKLCH	oklch(48.14% 0.139 255.6)
XYZ	xyz(11.6740, 10.9908, 39.5286)
Luminance	0.1099 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5DAA #AA6A1D

analogous

#1DA4AA #1D5DAA #241DAA

triadic

#1D5DAA #AA1D5D #5DAA1D

tetradic

#1D5DAA #AA1DA4 #AA6A1D #1DAA24

square

#1D5DAA #AA1DA4 #AA6A1D #1DAA24

split-complementary

#1D5DAA #AA241D #A4AA1D

monochromatic

#0B2441 #144076 #1D5DAA #2A7ADB #5E9BE4

Accessibility & contrast

On white

6.57

#1D5DAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#1D5DAA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D5DAA

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5DAA	#FFFFFF	#000000	##FFFFFF
##1D5DAA	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3464AD

Deuteranopia (green-blind)

#1457A8

Tritanopia (blue-blind)

#006F7B

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1d5daa;
/* rgb */ color: rgb(29, 93, 170);
/* oklch */ color: oklch(48.1% 0.139 255.6);

Tailwind

colors: {
  custom: {
    50: '#718ac4',
    500: '#1d5daa',
    950: '#000000',
  },
}

SCSS

$custom: #1d5daa;
$custom-light: #718ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5daa",
  "rgb": {
    "r": 29,
    "g": 93,
    "b": 170
  },
  "hsl": {
    "h": 212.766,
    "s": 70.854,
    "l": 39.02
  },
  "oklch": {
    "l": 0.48141,
    "c": 0.13885,
    "h": 255.6
  },
  "luminance": 0.10992
}

Semantic roles & 50–950 ramp

primary

#1D5DAA

secondary

#C8965B

accent

#9C3AEE

background

#F7F8FC

surface

#EDF0F8

border

#C8CBD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #1D5DAA

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

Preview Lab → · Contrast checker → · Palette generator →