#255FB0#255FB0

#255FB0 is a mid, vivid cyan. Relative luminance 0.117; OKLCH L 49.2% C 0.142 H 257.7°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#255FB0
RGB	rgb(37, 95, 176)
HSL	hsl(215, 65%, 42%)
HSV	hsv(215, 79%, 69%)
CMYK	cmyk(79%, 46%, 0%, 31%)
CIE-LAB	lab(40.75, 10.92, -48.49)
CIE-LCH	lch(40.75, 49.71, 282.69°)
OKLab	oklab(49.25% -0.0305 -0.1391)
OKLCH	oklch(49.25% 0.142 257.7)
XYZ	xyz(12.6887, 11.7108, 42.6575)
Luminance	0.1171 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255FB0 #B07625

analogous

#25A5B0 #255FB0 #3125B0

triadic

#255FB0 #B0255F #5FB025

tetradic

#255FB0 #B025A5 #B07625 #25B031

square

#255FB0 #B025A5 #B07625 #25B031

split-complementary

#255FB0 #B03125 #A5B025

monochromatic

#10284B #1A447D #255FB0 #3C7CD6 #6F9EE1

Accessibility & contrast

On white

6.28

#255FB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#255FB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255FB0

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255FB0	#FFFFFF	#000000	##FFFFFF
##255FB0	1.00	6.28	3.34	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3467B3

Deuteranopia (green-blind)

#135AAE

Tritanopia (blue-blind)

#00727F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #255fb0;
/* rgb */ color: rgb(37, 95, 176);
/* oklch */ color: oklch(49.2% 0.142 257.7);

Tailwind

colors: {
  custom: {
    50: '#758bc8',
    500: '#255fb0',
    950: '#000000',
  },
}

SCSS

$custom: #255fb0;
$custom-light: #758bc8;
$custom-dark: #000000;

JSON

{
  "hex": "#255fb0",
  "rgb": {
    "r": 37,
    "g": 95,
    "b": 176
  },
  "hsl": {
    "h": 214.964,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.49245,
    "c": 0.14244,
    "h": 257.7
  },
  "luminance": 0.11712
}

Semantic roles & 50–950 ramp

primary

#255FB0

secondary

#C7A06A

accent

#A240E8

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #255FB0

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

Preview Lab → · Contrast checker → · Palette generator →