#255A6D#255A6D

#255A6D is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.0% C 0.064 H 224.7°. Best body text is #FFFFFF at 7.60:1 contrast (WCAG AA passes).

Color values

HEX	#255A6D
RGB	rgb(37, 90, 109)
HSL	hsl(196, 49%, 29%)
HSV	hsv(196, 66%, 43%)
CMYK	cmyk(66.1%, 17.4%, 0%, 57.3%)
CIE-LAB	lab(35.61, -11.13, -16.08)
CIE-LCH	lch(35.61, 19.55, 235.32°)
OKLab	oklab(44.04% -0.0453 -0.0448)
OKLCH	oklch(44.04% 0.064 224.7)
XYZ	xyz(7.1783, 8.8090, 15.7870)
Luminance	0.0881 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255A6D #6D3825

analogous

#256D5C #255A6D #25366D

triadic

#255A6D #6D255A #5A6D25

tetradic

#255A6D #5C256D #6D3825 #366D25

square

#255A6D #5C256D #6D3825 #366D25

split-complementary

#255A6D #6D2536 #6D5C25

monochromatic

#081317 #15343F #255A6D #35809B #4BA2C2

Accessibility & contrast

On white

7.60

#255A6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#255A6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255A6D

7.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255A6D	#FFFFFF	#000000	##FFFFFF
##255A6D	1.00	7.60	2.76	7.60
#FFFFFF	7.60	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F586E

Deuteranopia (green-blind)

#45506D

Tritanopia (blue-blind)

#006060

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #255a6d;
/* rgb */ color: rgb(37, 90, 109);
/* oklch */ color: oklch(44.0% 0.064 224.7);

Tailwind

colors: {
  custom: {
    50: '#688897',
    500: '#255a6d',
    950: '#000000',
  },
}

SCSS

$custom: #255a6d;
$custom-light: #688897;
$custom-dark: #000000;

JSON

{
  "hex": "#255a6d",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 109
  },
  "hsl": {
    "h": 195.833,
    "s": 49.315,
    "l": 28.627
  },
  "oklch": {
    "l": 0.4404,
    "c": 0.06373,
    "h": 224.7
  },
  "luminance": 0.0881
}

Semantic roles & 50–950 ramp

primary

#255A6D

secondary

#A0644E

accent

#734FD9

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0D

muted

#7A7C7E

Preview Lab

Preview with #255A6D

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

Preview Lab → · Contrast checker → · Palette generator →