#1F589C#1F589C

#1F589C is a mid, vivid cyan. Relative luminance 0.097; OKLCH L 46.1% C 0.125 H 255.1°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#1F589C
RGB	rgb(31, 88, 156)
HSL	hsl(213, 67%, 37%)
HSV	hsv(213, 80%, 61%)
CMYK	cmyk(80.1%, 43.6%, 0%, 38.8%)
CIE-LAB	lab(37.24, 6.96, -42.25)
CIE-LCH	lch(37.24, 42.82, 279.36°)
OKLab	oklab(46.07% -0.0321 -0.121)
OKLCH	oklch(46.07% 0.125 255.1)
XYZ	xyz(10.0533, 9.6699, 32.7827)
Luminance	0.0967 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F589C #9C631F

analogous

#1F979C #1F589C #251F9C

triadic

#1F589C #9C1F58 #589C1F

tetradic

#1F589C #9C1F97 #9C631F #1F9C25

square

#1F589C #9C1F97 #9C631F #1F9C25

split-complementary

#1F589C #9C251F #979C1F

monochromatic

#0B1E36 #153B69 #1F589C #2975CF #5895DE

Accessibility & contrast

On white

7.16

#1F589C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#1F589C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F589C

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F589C	#FFFFFF	#000000	##FFFFFF
##1F589C	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365E9F

Deuteranopia (green-blind)

#1E529B

Tritanopia (blue-blind)

#006872

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1f589c;
/* rgb */ color: rgb(31, 88, 156);
/* oklch */ color: oklch(46.1% 0.125 255.1);

Tailwind

colors: {
  custom: {
    50: '#6f86ba',
    500: '#1f589c',
    950: '#000000',
  },
}

SCSS

$custom: #1f589c;
$custom-light: #6f86ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1f589c",
  "rgb": {
    "r": 31,
    "g": 88,
    "b": 156
  },
  "hsl": {
    "h": 212.64,
    "s": 66.845,
    "l": 36.667
  },
  "oklch": {
    "l": 0.46071,
    "c": 0.12517,
    "h": 255.1
  },
  "luminance": 0.09671
}

Semantic roles & 50–950 ramp

primary

#1F589C

secondary

#C19055

accent

#9B3EEA

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #1F589C

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

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