#1D5E9E#1D5E9E

#1D5E9E is a mid, vivid cyan. Relative luminance 0.107; OKLCH L 47.6% C 0.122 H 251.8°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#1D5E9E
RGB	rgb(29, 94, 158)
HSL	hsl(210, 69%, 37%)
HSV	hsv(210, 82%, 62%)
CMYK	cmyk(81.6%, 40.5%, 0%, 38%)
CIE-LAB	lab(39.13, 3.64, -40.44)
CIE-LCH	lch(39.13, 40.60, 275.15°)
OKLab	oklab(47.56% -0.0379 -0.1156)
OKLCH	oklch(47.56% 0.122 251.8)
XYZ	xyz(10.6786, 10.7339, 33.8502)
Luminance	0.1074 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5E9E #9E5D1D

analogous

#1D9E9E #1D5E9E #1D1E9E

triadic

#1D5E9E #9E1D5E #5E9E1D

tetradic

#1D5E9E #9E1D9E #9E5D1D #1E9E1D

square

#1D5E9E #9E1D9E #9E5D1D #1E9E1D

split-complementary

#1D5E9E #9E1D1E #9E9E1D

monochromatic

#0A2037 #143F6A #1D5E9E #267DD2 #569BE0

Accessibility & contrast

On white

6.67

#1D5E9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#1D5E9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D5E9E

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5E9E	#FFFFFF	#000000	##FFFFFF
##1D5E9E	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F62A1

Deuteranopia (green-blind)

#2A579D

Tritanopia (blue-blind)

#006D76

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1d5e9e;
/* rgb */ color: rgb(29, 94, 158);
/* oklch */ color: oklch(47.6% 0.122 251.8);

Tailwind

colors: {
  custom: {
    50: '#6f8bbb',
    500: '#1d5e9e',
    950: '#000000',
  },
}

SCSS

$custom: #1d5e9e;
$custom-light: #6f8bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5e9e",
  "rgb": {
    "r": 29,
    "g": 94,
    "b": 158
  },
  "hsl": {
    "h": 209.767,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.47564,
    "c": 0.12164,
    "h": 251.8
  },
  "luminance": 0.10735
}

Semantic roles & 50–950 ramp

primary

#1D5E9E

secondary

#C38B54

accent

#933CEC

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #1D5E9E

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

Preview Lab → · Contrast checker → · Palette generator →