#1C599F#1C599F

#1C599F is a mid, vivid cyan. Relative luminance 0.099; OKLCH L 46.4% C 0.129 H 254.7°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#1C599F
RGB	rgb(28, 89, 159)
HSL	hsl(212, 70%, 37%)
HSV	hsv(212, 82%, 62%)
CMYK	cmyk(82.4%, 44%, 0%, 37.6%)
CIE-LAB	lab(37.65, 7.18, -43.40)
CIE-LCH	lch(37.65, 43.99, 279.39°)
OKLab	oklab(46.43% -0.0339 -0.1244)
OKLCH	oklch(46.43% 0.129 254.7)
XYZ	xyz(10.3069, 9.8936, 34.1606)
Luminance	0.0989 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C599F #9F621C

analogous

#1C9B9F #1C599F #211C9F

triadic

#1C599F #9F1C59 #599F1C

tetradic

#1C599F #9F1C9B #9F621C #1C9F21

square

#1C599F #9F1C9B #9F621C #1C9F21

split-complementary

#1C599F #9F211C #9B9F1C

monochromatic

#0A1F37 #133C6B #1C599F #2576D3 #5496E1

Accessibility & contrast

On white

7.05

#1C599F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#1C599F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C599F

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C599F	#FFFFFF	#000000	##FFFFFF
##1C599F	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355FA2

Deuteranopia (green-blind)

#1B539E

Tritanopia (blue-blind)

#006A74

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #1c599f;
/* rgb */ color: rgb(28, 89, 159);
/* oklch */ color: oklch(46.4% 0.129 254.7);

Tailwind

colors: {
  custom: {
    50: '#6f87bc',
    500: '#1c599f',
    950: '#000000',
  },
}

SCSS

$custom: #1c599f;
$custom-light: #6f87bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1c599f",
  "rgb": {
    "r": 28,
    "g": 89,
    "b": 159
  },
  "hsl": {
    "h": 212.061,
    "s": 70.053,
    "l": 36.667
  },
  "oklch": {
    "l": 0.46425,
    "c": 0.12892,
    "h": 254.7
  },
  "luminance": 0.09895
}

Semantic roles & 50–950 ramp

primary

#1C599F

secondary

#C48F53

accent

#9A3BED

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #1C599F

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

Preview Lab → · Contrast checker → · Palette generator →