#1D5D9F#1D5D9F

#1D5D9F is a mid, vivid cyan. Relative luminance 0.106; OKLCH L 47.4% C 0.124 H 252.7°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#1D5D9F
RGB	rgb(29, 93, 159)
HSL	hsl(210, 69%, 37%)
HSV	hsv(210, 82%, 62%)
CMYK	cmyk(81.8%, 41.5%, 0%, 37.6%)
CIE-LAB	lab(38.88, 4.68, -41.42)
CIE-LCH	lch(38.88, 41.69, 276.45°)
OKLab	oklab(47.39% -0.0368 -0.1185)
OKLCH	oklch(47.39% 0.124 252.7)
XYZ	xyz(10.6767, 10.5918, 34.2759)
Luminance	0.1059 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5D9F #9F5F1D

analogous

#1D9E9F #1D5D9F #1E1D9F

triadic

#1D5D9F #9F1D5D #5D9F1D

tetradic

#1D5D9F #9F1D9E #9F5F1D #1D9F1E

square

#1D5D9F #9F1D9E #9F5F1D #1D9F1E

split-complementary

#1D5D9F #9F1E1D #9E9F1D

monochromatic

#0A2037 #143F6B #1D5D9F #267BD3 #569AE0

Accessibility & contrast

On white

6.73

#1D5D9F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#1D5D9F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D5D9F

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5D9F	#FFFFFF	#000000	##FFFFFF
##1D5D9F	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D62A2

Deuteranopia (green-blind)

#26569E

Tritanopia (blue-blind)

#006D76

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1d5d9f;
/* rgb */ color: rgb(29, 93, 159);
/* oklch */ color: oklch(47.4% 0.124 252.7);

Tailwind

colors: {
  custom: {
    50: '#6f8abc',
    500: '#1d5d9f',
    950: '#000000',
  },
}

SCSS

$custom: #1d5d9f;
$custom-light: #6f8abc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5d9f",
  "rgb": {
    "r": 29,
    "g": 93,
    "b": 159
  },
  "hsl": {
    "h": 210.462,
    "s": 69.149,
    "l": 36.863
  },
  "oklch": {
    "l": 0.47392,
    "c": 0.12408,
    "h": 252.7
  },
  "luminance": 0.10593
}

Semantic roles & 50–950 ramp

primary

#1D5D9F

secondary

#C48D54

accent

#953CEC

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1D5D9F

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

Preview Lab → · Contrast checker → · Palette generator →