#1D5FA1#1D5FA1

#1D5FA1 is a mid, vivid cyan. Relative luminance 0.110; OKLCH L 48.0% C 0.125 H 252.2°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#1D5FA1
RGB	rgb(29, 95, 161)
HSL	hsl(210, 69%, 37%)
HSV	hsv(210, 82%, 63%)
CMYK	cmyk(82%, 41%, 0%, 36.9%)
CIE-LAB	lab(39.61, 4.18, -41.46)
CIE-LCH	lch(39.61, 41.67, 275.76°)
OKLab	oklab(48% -0.0381 -0.1185)
OKLCH	oklch(48% 0.125 252.2)
XYZ	xyz(11.0295, 11.0175, 35.2566)
Luminance	0.1102 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D5FA1 #A15F1D

analogous

#1DA1A1 #1D5FA1 #1D1DA1

triadic

#1D5FA1 #A11D5F #5FA11D

tetradic

#1D5FA1 #A11DA1 #A15F1D #1DA11D

square

#1D5FA1 #A11DA1 #A15F1D #1DA11D

split-complementary

#1D5FA1 #A11D1D #A1A11D

monochromatic

#0A2239 #14406D #1D5FA1 #267ED5 #589CE1

Accessibility & contrast

On white

6.55

#1D5FA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#1D5FA1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1D5FA1

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D5FA1	#FFFFFF	#000000	##FFFFFF
##1D5FA1	1.00	6.55	3.20	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F64A4

Deuteranopia (green-blind)

#2958A0

Tritanopia (blue-blind)

#006F78

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1d5fa1;
/* rgb */ color: rgb(29, 95, 161);
/* oklch */ color: oklch(48.0% 0.125 252.2);

Tailwind

colors: {
  custom: {
    50: '#6f8bbd',
    500: '#1d5fa1',
    950: '#000000',
  },
}

SCSS

$custom: #1d5fa1;
$custom-light: #6f8bbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1d5fa1",
  "rgb": {
    "r": 29,
    "g": 95,
    "b": 161
  },
  "hsl": {
    "h": 210,
    "s": 69.474,
    "l": 37.255
  },
  "oklch": {
    "l": 0.47997,
    "c": 0.12452,
    "h": 252.2
  },
  "luminance": 0.11019
}

Semantic roles & 50–950 ramp

primary

#1D5FA1

secondary

#C48D55

accent

#943CEC

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #1D5FA1

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

Preview Lab → · Contrast checker → · Palette generator →