#1F556E#1F556E

#1F556E is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 42.5% C 0.070 H 231.8°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#1F556E
RGB	rgb(31, 85, 110)
HSL	hsl(199, 56%, 28%)
HSV	hsv(199, 72%, 43%)
CMYK	cmyk(71.8%, 22.7%, 0%, 56.9%)
CIE-LAB	lab(33.80, -8.87, -19.51)
CIE-LCH	lch(33.80, 21.44, 245.55°)
OKLab	oklab(42.55% -0.0431 -0.0547)
OKLCH	oklch(42.55% 0.07 231.8)
XYZ	xyz(6.6269, 7.9134, 15.9270)
Luminance	0.0791 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F556E #6E381F

analogous

#1F6E5F #1F556E #1F2E6E

triadic

#1F556E #6E1F55 #556E1F

tetradic

#1F556E #5F1F6E #6E381F #2E6E1F

square

#1F556E #5F1F6E #6E381F #2E6E1F

split-complementary

#1F556E #6E1F2E #6E5F1F

monochromatic

#071218 #12303E #1F556E #2C7A9E #3F9DC9

Accessibility & contrast

On white

8.13

#1F556E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#1F556E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F556E

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F556E	#FFFFFF	#000000	##FFFFFF
##1F556E	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49546F

Deuteranopia (green-blind)

#3E4C6E

Tritanopia (blue-blind)

#005C5D

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1f556e;
/* rgb */ color: rgb(31, 85, 110);
/* oklch */ color: oklch(42.5% 0.070 231.8);

Tailwind

colors: {
  custom: {
    50: '#658497',
    500: '#1f556e',
    950: '#000000',
  },
}

SCSS

$custom: #1f556e;
$custom-light: #658497;
$custom-dark: #000000;

JSON

{
  "hex": "#1f556e",
  "rgb": {
    "r": 31,
    "g": 85,
    "b": 110
  },
  "hsl": {
    "h": 198.987,
    "s": 56.028,
    "l": 27.647
  },
  "oklch": {
    "l": 0.4255,
    "c": 0.06965,
    "h": 231.8
  },
  "luminance": 0.07914
}

Semantic roles & 50–950 ramp

primary

#1F556E

secondary

#A26447

accent

#7848DF

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #1F556E

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

Preview Lab → · Contrast checker → · Palette generator →