#255BAF#255BAF

#255BAF is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.3% C 0.146 H 259.2°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#255BAF
RGB	rgb(37, 91, 175)
HSL	hsl(217, 65%, 42%)
HSV	hsv(217, 79%, 69%)
CMYK	cmyk(78.9%, 48%, 0%, 31.4%)
CIE-LAB	lab(39.53, 13.14, -49.87)
CIE-LCH	lch(39.53, 51.58, 284.76°)
OKLab	oklab(48.28% -0.0274 -0.1433)
OKLCH	oklch(48.28% 0.146 259.2)
XYZ	xyz(12.2391, 10.9692, 42.0213)
Luminance	0.1097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255BAF #AF7925

analogous

#25A0AF #255BAF #3425AF

triadic

#255BAF #AF255B #5BAF25

tetradic

#255BAF #AF25A0 #AF7925 #25AF34

square

#255BAF #AF25A0 #AF7925 #25AF34

split-complementary

#255BAF #AF3425 #A0AF25

monochromatic

#10264A #1A417C #255BAF #3C78D6 #6E9BE0

Accessibility & contrast

On white

6.57

#255BAF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#255BAF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255BAF

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255BAF	#FFFFFF	#000000	##FFFFFF
##255BAF	1.00	6.57	3.19	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C64B2

Deuteranopia (green-blind)

#0057AD

Tritanopia (blue-blind)

#006F7C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #255baf;
/* rgb */ color: rgb(37, 91, 175);
/* oklch */ color: oklch(48.3% 0.146 259.2);

Tailwind

colors: {
  custom: {
    50: '#7588c7',
    500: '#255baf',
    950: '#000000',
  },
}

SCSS

$custom: #255baf;
$custom-light: #7588c7;
$custom-dark: #000000;

JSON

{
  "hex": "#255baf",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 175
  },
  "hsl": {
    "h": 216.522,
    "s": 65.094,
    "l": 41.569
  },
  "oklch": {
    "l": 0.48281,
    "c": 0.14587,
    "h": 259.2
  },
  "luminance": 0.10971
}

Semantic roles & 50–950 ramp

primary

#255BAF

secondary

#C7A269

accent

#A640E8

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #255BAF

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

Preview Lab → · Contrast checker → · Palette generator →