#255A7C#255A7C

#255A7C is a dark, moderate cyan. Relative luminance 0.092; OKLCH L 44.8% C 0.079 H 240.0°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#255A7C
RGB	rgb(37, 90, 124)
HSL	hsl(203, 54%, 32%)
HSV	hsv(203, 70%, 49%)
CMYK	cmyk(70.2%, 27.4%, 0%, 51.4%)
CIE-LAB	lab(36.29, -5.76, -24.30)
CIE-LCH	lch(36.29, 24.98, 256.67°)
OKLab	oklab(44.8% -0.0394 -0.0684)
OKLCH	oklch(44.8% 0.079 240)
XYZ	xyz(8.0558, 9.1600, 20.4084)
Luminance	0.0916 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255A7C #7C4725

analogous

#257C73 #255A7C #252F7C

triadic

#255A7C #7C255A #5A7C25

tetradic

#255A7C #73257C #7C4725 #2F7C25

square

#255A7C #73257C #7C4725 #2F7C25

split-complementary

#255A7C #7C252F #7C7325

monochromatic

#09161E #17384D #255A7C #337CAB #509BCB

Accessibility & contrast

On white

7.41

#255A7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#255A7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255A7C

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255A7C	#FFFFFF	#000000	##FFFFFF
##255A7C	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A5A7E

Deuteranopia (green-blind)

#3E527B

Tritanopia (blue-blind)

#006366

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #255a7c;
/* rgb */ color: rgb(37, 90, 124);
/* oklch */ color: oklch(44.8% 0.079 240.0);

Tailwind

colors: {
  custom: {
    50: '#6a88a2',
    500: '#255a7c',
    950: '#000000',
  },
}

SCSS

$custom: #255a7c;
$custom-light: #6a88a2;
$custom-dark: #000000;

JSON

{
  "hex": "#255a7c",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 124
  },
  "hsl": {
    "h": 203.448,
    "s": 54.037,
    "l": 31.569
  },
  "oklch": {
    "l": 0.44802,
    "c": 0.079,
    "h": 240
  },
  "luminance": 0.09161
}

Semantic roles & 50–950 ramp

primary

#255A7C

secondary

#AE744F

accent

#844ADD

background

#F6F8F9

surface

#ECEFF2

border

#C7CACC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #255A7C

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

Preview Lab → · Contrast checker → · Palette generator →