#1F599C#1F599C

#1F599C is a mid, vivid cyan. Relative luminance 0.098; OKLCH L 46.3% C 0.124 H 254.6°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#1F599C
RGB	rgb(31, 89, 156)
HSL	hsl(212, 67%, 37%)
HSV	hsv(212, 80%, 61%)
CMYK	cmyk(80.1%, 42.9%, 0%, 38.8%)
CIE-LAB	lab(37.55, 6.31, -41.77)
CIE-LCH	lch(37.55, 42.24, 278.59°)
OKLab	oklab(46.31% -0.0329 -0.1195)
OKLCH	oklch(46.31% 0.124 254.6)
XYZ	xyz(10.1360, 9.8352, 32.8102)
Luminance	0.0984 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F599C #9C621F

analogous

#1F989C #1F599C #241F9C

triadic

#1F599C #9C1F59 #599C1F

tetradic

#1F599C #9C1F98 #9C621F #1F9C24

square

#1F599C #9C1F98 #9C621F #1F9C24

split-complementary

#1F599C #9C241F #989C1F

monochromatic

#0B1F36 #153C69 #1F599C #2976CF #5896DE

Accessibility & contrast

On white

7.08

#1F599C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#1F599C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F599C

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F599C	#FFFFFF	#000000	##FFFFFF
##1F599C	1.00	7.08	2.97	7.08
#FFFFFF	7.08	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#385E9F

Deuteranopia (green-blind)

#21539B

Tritanopia (blue-blind)

#006973

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1f599c;
/* rgb */ color: rgb(31, 89, 156);
/* oklch */ color: oklch(46.3% 0.124 254.6);

Tailwind

colors: {
  custom: {
    50: '#6f87b9',
    500: '#1f599c',
    950: '#000000',
  },
}

SCSS

$custom: #1f599c;
$custom-light: #6f87b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f599c",
  "rgb": {
    "r": 31,
    "g": 89,
    "b": 156
  },
  "hsl": {
    "h": 212.16,
    "s": 66.845,
    "l": 36.667
  },
  "oklch": {
    "l": 0.46305,
    "c": 0.12401,
    "h": 254.6
  },
  "luminance": 0.09836
}

Semantic roles & 50–950 ramp

primary

#1F599C

secondary

#C18F55

accent

#9A3EEA

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #1F599C

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

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