#1F5D9E#1F5D9E

#1F5D9E is a mid, vivid cyan. Relative luminance 0.106; OKLCH L 47.4% C 0.122 H 252.9°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#1F5D9E
RGB	rgb(31, 93, 158)
HSL	hsl(211, 67%, 37%)
HSV	hsv(211, 80%, 62%)
CMYK	cmyk(80.4%, 41.1%, 0%, 38%)
CIE-LAB	lab(38.88, 4.50, -40.84)
CIE-LCH	lch(38.88, 41.08, 276.29°)
OKLab	oklab(47.38% -0.036 -0.1167)
OKLCH	oklch(47.38% 0.122 252.9)
XYZ	xyz(10.6487, 10.5874, 33.8235)
Luminance	0.1059 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5D9E #9E601F

analogous

#1F9D9E #1F5D9E #211F9E

triadic

#1F5D9E #9E1F5D #5D9E1F

tetradic

#1F5D9E #9E1F9D #9E601F #1F9E21

square

#1F5D9E #9E1F9D #9E601F #1F9E21

split-complementary

#1F5D9E #9E211F #9D9E1F

monochromatic

#0B2138 #153F6B #1F5D9E #297BD1 #599ADE

Accessibility & contrast

On white

6.74

#1F5D9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#1F5D9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5D9E

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5D9E	#FFFFFF	#000000	##FFFFFF
##1F5D9E	1.00	6.74	3.12	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D62A1

Deuteranopia (green-blind)

#28569D

Tritanopia (blue-blind)

#006C76

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1f5d9e;
/* rgb */ color: rgb(31, 93, 158);
/* oklch */ color: oklch(47.4% 0.122 252.9);

Tailwind

colors: {
  custom: {
    50: '#6f8abb',
    500: '#1f5d9e',
    950: '#000000',
  },
}

SCSS

$custom: #1f5d9e;
$custom-light: #6f8abb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5d9e",
  "rgb": {
    "r": 31,
    "g": 93,
    "b": 158
  },
  "hsl": {
    "h": 210.709,
    "s": 67.196,
    "l": 37.059
  },
  "oklch": {
    "l": 0.47382,
    "c": 0.12216,
    "h": 252.9
  },
  "luminance": 0.10589
}

Semantic roles & 50–950 ramp

primary

#1F5D9E

secondary

#C28E56

accent

#963EEA

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1F5D9E

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

Preview Lab → · Contrast checker → · Palette generator →