#253F9C#253F9C

#253F9C is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.8% C 0.155 H 267.2°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#253F9C
RGB	rgb(37, 63, 156)
HSL	hsl(227, 62%, 38%)
HSV	hsv(227, 76%, 61%)
CMYK	cmyk(76.3%, 59.6%, 0%, 38.8%)
CIE-LAB	lab(30.27, 24.48, -53.50)
CIE-LCH	lch(30.27, 58.83, 294.59°)
OKLab	oklab(40.81% -0.0076 -0.1544)
OKLCH	oklch(40.81% 0.155 267.2)
XYZ	xyz(8.5391, 6.3477, 32.2212)
Luminance	0.0635 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253F9C #9C8225

analogous

#257A9C #253F9C #47259C

triadic

#253F9C #9C253F #3F9C25

tetradic

#253F9C #9C257A #9C8225 #259C47

square

#253F9C #9C257A #9C8225 #259C47

split-complementary

#253F9C #9C4725 #7A9C25

monochromatic

#0E1739 #192B6B #253F9C #3153CD #627CDA

Accessibility & contrast

On white

9.25

#253F9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#253F9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253F9C

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253F9C	#FFFFFF	#000000	##FFFFFF
##253F9C	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9F

Deuteranopia (green-blind)

#00429A

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #253f9c;
/* rgb */ color: rgb(37, 63, 156);
/* oklch */ color: oklch(40.8% 0.155 267.2);

Tailwind

colors: {
  custom: {
    50: '#7273ba',
    500: '#253f9c',
    950: '#000000',
  },
}

SCSS

$custom: #253f9c;
$custom-light: #7273ba;
$custom-dark: #000000;

JSON

{
  "hex": "#253f9c",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 156
  },
  "hsl": {
    "h": 226.891,
    "s": 61.658,
    "l": 37.843
  },
  "oklch": {
    "l": 0.40814,
    "c": 0.15463,
    "h": 267.2
  },
  "luminance": 0.06349
}

Semantic roles & 50–950 ramp

primary

#253F9C

secondary

#BFAA5E

accent

#C143E5

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #253F9C

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

Preview Lab → · Contrast checker → · Palette generator →