#1F598F#1F598F

#1F598F is a mid, moderate cyan. Relative luminance 0.094; OKLCH L 45.5% C 0.106 H 250.1°. Best body text is #FFFFFF at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#1F598F
RGB	rgb(31, 89, 143)
HSL	hsl(209, 64%, 34%)
HSV	hsv(209, 78%, 56%)
CMYK	cmyk(78.3%, 37.8%, 0%, 43.9%)
CIE-LAB	lab(36.78, 1.19, -35.15)
CIE-LCH	lch(36.78, 35.17, 271.95°)
OKLab	oklab(45.46% -0.0362 -0.1001)
OKLCH	oklch(45.46% 0.106 250.1)
XYZ	xyz(9.0935, 9.4182, 27.3199)
Luminance	0.0942 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F598F #8F551F

analogous

#1F8F8D #1F598F #1F218F

triadic

#1F598F #8F1F59 #598F1F

tetradic

#1F598F #8D1F8F #8F551F #218F1F

square

#1F598F #8D1F8F #8F551F #218F1F

split-complementary

#1F598F #8F1F21 #8F8D1F

monochromatic

#091A2A #143A5D #1F598F #2A78C1 #4F97D9

Accessibility & contrast

On white

7.28

#1F598F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#1F598F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F598F

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F598F	#FFFFFF	#000000	##FFFFFF
##1F598F	1.00	7.28	2.88	7.28
#FFFFFF	7.28	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#405C91

Deuteranopia (green-blind)

#2F528E

Tritanopia (blue-blind)

#00666D

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1f598f;
/* rgb */ color: rgb(31, 89, 143);
/* oklch */ color: oklch(45.5% 0.106 250.1);

Tailwind

colors: {
  custom: {
    50: '#6c87b0',
    500: '#1f598f',
    950: '#000000',
  },
}

SCSS

$custom: #1f598f;
$custom-light: #6c87b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f598f",
  "rgb": {
    "r": 31,
    "g": 89,
    "b": 143
  },
  "hsl": {
    "h": 208.929,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.45457,
    "c": 0.10647,
    "h": 250.1
  },
  "luminance": 0.09419
}

Semantic roles & 50–950 ramp

primary

#1F598F

secondary

#BC834E

accent

#9140E7

background

#F6F8FA

surface

#ECEFF5

border

#C7CACF

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1F598F

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

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