#255A9B#255A9B

#255A9B is a mid, moderate cyan. Relative luminance 0.101; OKLCH L 46.7% C 0.120 H 255.3°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#255A9B
RGB	rgb(37, 90, 155)
HSL	hsl(213, 61%, 38%)
HSV	hsv(213, 76%, 61%)
CMYK	cmyk(76.1%, 41.9%, 0%, 39.2%)
CIE-LAB	lab(37.97, 6.01, -40.48)
CIE-LCH	lch(37.97, 40.92, 278.44°)
OKLab	oklab(46.67% -0.0304 -0.1157)
OKLCH	oklch(46.67% 0.12 255.3)
XYZ	xyz(10.3333, 10.0710, 32.4033)
Luminance	0.1007 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255A9B #9B6625

analogous

#25959B #255A9B #2B259B

triadic

#255A9B #9B255A #5A9B25

tetradic

#255A9B #9B2595 #9B6625 #259B2B

square

#255A9B #9B2595 #9B6625 #259B2B

split-complementary

#255A9B #9B2B25 #959B25

monochromatic

#0D2138 #193D6A #255A9B #3177CC #6197D9

Accessibility & contrast

On white

6.97

#255A9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#255A9B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255A9B

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255A9B	#FFFFFF	#000000	##FFFFFF
##255A9B	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B5F9E

Deuteranopia (green-blind)

#27549A

Tritanopia (blue-blind)

#006973

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #255a9b;
/* rgb */ color: rgb(37, 90, 155);
/* oklch */ color: oklch(46.7% 0.120 255.3);

Tailwind

colors: {
  custom: {
    50: '#7088b9',
    500: '#255a9b',
    950: '#000000',
  },
}

SCSS

$custom: #255a9b;
$custom-light: #7088b9;
$custom-dark: #000000;

JSON

{
  "hex": "#255a9b",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 155
  },
  "hsl": {
    "h": 213.051,
    "s": 61.458,
    "l": 37.647
  },
  "oklch": {
    "l": 0.46668,
    "c": 0.1196,
    "h": 255.3
  },
  "luminance": 0.10072
}

Semantic roles & 50–950 ramp

primary

#255A9B

secondary

#BF935D

accent

#9C43E5

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #255A9B

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

Preview Lab → · Contrast checker → · Palette generator →