#1D599F#1D599F

#1D599F is a mid, vivid cyan. Relative luminance 0.099; OKLCH L 46.5% C 0.129 H 255.0°. Best body text is #FFFFFF at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#1D599F
RGB	rgb(29, 89, 159)
HSL	hsl(212, 69%, 37%)
HSV	hsv(212, 82%, 62%)
CMYK	cmyk(81.8%, 44%, 0%, 37.6%)
CIE-LAB	lab(37.68, 7.28, -43.36)
CIE-LCH	lch(37.68, 43.96, 279.54°)
OKLab	oklab(46.45% -0.0334 -0.1242)
OKLCH	oklch(46.45% 0.129 255)
XYZ	xyz(10.3347, 9.9079, 34.1619)
Luminance	0.0991 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D599F #9F631D

analogous

#1D9A9F #1D599F #221D9F

triadic

#1D599F #9F1D59 #599F1D

tetradic

#1D599F #9F1D9A #9F631D #1D9F22

square

#1D599F #9F1D9A #9F631D #1D9F22

split-complementary

#1D599F #9F221D #9A9F1D

monochromatic

#0A1F37 #143C6B #1D599F #2676D3 #5696E0

Accessibility & contrast

On white

7.04

#1D599F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#1D599F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D599F

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D599F	#FFFFFF	#000000	##FFFFFF
##1D599F	1.00	7.04	2.98	7.04
#FFFFFF	7.04	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355FA2

Deuteranopia (green-blind)

#1C539E

Tritanopia (blue-blind)

#006A74

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1d599f;
/* rgb */ color: rgb(29, 89, 159);
/* oklch */ color: oklch(46.5% 0.129 255.0);

Tailwind

colors: {
  custom: {
    50: '#6f87bc',
    500: '#1d599f',
    950: '#000000',
  },
}

SCSS

$custom: #1d599f;
$custom-light: #6f87bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d599f",
  "rgb": {
    "r": 29,
    "g": 89,
    "b": 159
  },
  "hsl": {
    "h": 212.308,
    "s": 69.149,
    "l": 36.863
  },
  "oklch": {
    "l": 0.46452,
    "c": 0.12866,
    "h": 255
  },
  "luminance": 0.09909
}

Semantic roles & 50–950 ramp

primary

#1D599F

secondary

#C49054

accent

#9B3CEC

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #1D599F

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

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