#1F596B#1F596B

#1F596B is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.5% C 0.066 H 222.1°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#1F596B
RGB	rgb(31, 89, 107)
HSL	hsl(194, 55%, 27%)
HSV	hsv(194, 71%, 42%)
CMYK	cmyk(71%, 16.8%, 0%, 58%)
CIE-LAB	lab(35.00, -12.35, -15.80)
CIE-LCH	lch(35.00, 20.05, 232.00°)
OKLab	oklab(43.46% -0.0489 -0.0441)
OKLCH	oklch(43.46% 0.066 222.1)
XYZ	xyz(6.7902, 8.4969, 15.1893)
Luminance	0.0850 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F596B #6B311F

analogous

#1F6B57 #1F596B #1F336B

triadic

#1F596B #6B1F59 #596B1F

tetradic

#1F596B #571F6B #6B311F #336B1F

square

#1F596B #571F6B #6B311F #336B1F

split-complementary

#1F596B #6B1F33 #6B571F

monochromatic

#071418 #11323C #1F596B #2D809A #3DA6C7

Accessibility & contrast

On white

7.78

#1F596B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#1F596B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F596B

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F596B	#FFFFFF	#000000	##FFFFFF
##1F596B	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E576C

Deuteranopia (green-blind)

#444F6B

Tritanopia (blue-blind)

#005F5F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1f596b;
/* rgb */ color: rgb(31, 89, 107);
/* oklch */ color: oklch(43.5% 0.066 222.1);

Tailwind

colors: {
  custom: {
    50: '#658895',
    500: '#1f596b',
    950: '#000000',
  },
}

SCSS

$custom: #1f596b;
$custom-light: #658895;
$custom-dark: #000000;

JSON

{
  "hex": "#1f596b",
  "rgb": {
    "r": 31,
    "g": 89,
    "b": 107
  },
  "hsl": {
    "h": 194.211,
    "s": 55.072,
    "l": 27.059
  },
  "oklch": {
    "l": 0.43461,
    "c": 0.06582,
    "h": 222.1
  },
  "luminance": 0.08498
}

Semantic roles & 50–950 ramp

primary

#1F596B

secondary

#9F5C47

accent

#6D49DE

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #1F596B

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

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