#1D5D9E#1D5D9E

#1D5D9E is a mid, vivid cyan. Relative luminance 0.106; OKLCH L 47.3% C 0.123 H 252.4°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#1D5D9E
RGB	rgb(29, 93, 158)
HSL	hsl(210, 69%, 37%)
HSV	hsv(210, 82%, 62%)
CMYK	cmyk(81.6%, 41.1%, 0%, 38%)
CIE-LAB	lab(38.82, 4.29, -40.92)
CIE-LCH	lch(38.82, 41.15, 275.98°)
OKLab	oklab(47.33% -0.0371 -0.117)
OKLCH	oklch(47.33% 0.123 252.4)
XYZ	xyz(10.5903, 10.5572, 33.8207)
Luminance	0.1056 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5D9E #9E5E1D

analogous

#1D9E9E #1D5D9E #1E1D9E

triadic

#1D5D9E #9E1D5D #5D9E1D

tetradic

#1D5D9E #9E1D9E #9E5E1D #1D9E1E

square

#1D5D9E #9E1D9E #9E5E1D #1D9E1E

split-complementary

#1D5D9E #9E1E1D #9E9E1D

monochromatic

#0A2037 #143F6A #1D5D9E #267BD2 #569AE0

Accessibility & contrast

On white

6.75

#1D5D9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#1D5D9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D5D9E

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5D9E	#FFFFFF	#000000	##FFFFFF
##1D5D9E	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D62A1

Deuteranopia (green-blind)

#28569D

Tritanopia (blue-blind)

#006C76

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #1d5d9e;
/* rgb */ color: rgb(29, 93, 158);
/* oklch */ color: oklch(47.3% 0.123 252.4);

Tailwind

colors: {
  custom: {
    50: '#6f8abb',
    500: '#1d5d9e',
    950: '#000000',
  },
}

SCSS

$custom: #1d5d9e;
$custom-light: #6f8abb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5d9e",
  "rgb": {
    "r": 29,
    "g": 93,
    "b": 158
  },
  "hsl": {
    "h": 210.233,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.47326,
    "c": 0.12275,
    "h": 252.4
  },
  "luminance": 0.10559
}

Semantic roles & 50–950 ramp

primary

#1D5D9E

secondary

#C38C54

accent

#953CEC

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #1D5D9E

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

Preview Lab → · Contrast checker → · Palette generator →