#255A7F#255A7F

#255A7F is a dark, moderate cyan. Relative luminance 0.092; OKLCH L 45.0% C 0.083 H 242.3°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#255A7F
RGB	rgb(37, 90, 127)
HSL	hsl(205, 55%, 32%)
HSV	hsv(205, 71%, 50%)
CMYK	cmyk(70.9%, 29.1%, 0%, 50.2%)
CIE-LAB	lab(36.44, -4.65, -25.92)
CIE-LCH	lch(36.44, 26.33, 259.82°)
OKLab	oklab(44.97% -0.0384 -0.0731)
OKLCH	oklch(44.97% 0.083 242.3)
XYZ	xyz(8.2484, 9.2371, 21.4228)
Luminance	0.0924 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255A7F #7F4A25

analogous

#257F77 #255A7F #252D7F

triadic

#255A7F #7F255A #5A7F25

tetradic

#255A7F #77257F #7F4A25 #2D7F25

square

#255A7F #77257F #7F4A25 #2D7F25

split-complementary

#255A7F #7F252D #7F7725

monochromatic

#091720 #173850 #255A7F #337CAE #529ACD

Accessibility & contrast

On white

7.37

#255A7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#255A7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255A7F

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255A7F	#FFFFFF	#000000	##FFFFFF
##255A7F	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#495B81

Deuteranopia (green-blind)

#3D527E

Tritanopia (blue-blind)

#006367

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #255a7f;
/* rgb */ color: rgb(37, 90, 127);
/* oklch */ color: oklch(45.0% 0.083 242.3);

Tailwind

colors: {
  custom: {
    50: '#6b88a4',
    500: '#255a7f',
    950: '#000000',
  },
}

SCSS

$custom: #255a7f;
$custom-light: #6b88a4;
$custom-dark: #000000;

JSON

{
  "hex": "#255a7f",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 127
  },
  "hsl": {
    "h": 204.667,
    "s": 54.878,
    "l": 32.157
  },
  "oklch": {
    "l": 0.44965,
    "c": 0.08259,
    "h": 242.3
  },
  "luminance": 0.09238
}

Semantic roles & 50–950 ramp

primary

#255A7F

secondary

#B1774F

accent

#874ADE

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #255A7F

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

Preview Lab → · Contrast checker → · Palette generator →