#253F72#253F72

#253F72 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.5% C 0.093 H 262.4°. Best body text is #FFFFFF at 10.33:1 contrast (WCAG AA passes).

Color values

HEX	#253F72
RGB	rgb(37, 63, 114)
HSL	hsl(220, 51%, 30%)
HSV	hsv(220, 68%, 45%)
CMYK	cmyk(67.5%, 44.7%, 0%, 55.3%)
CIE-LAB	lab(27.19, 8.11, -32.41)
CIE-LCH	lch(27.19, 33.41, 284.05°)
OKLab	oklab(37.5% -0.0123 -0.0924)
OKLCH	oklch(37.5% 0.093 262.4)
XYZ	xyz(5.5767, 5.1627, 16.6189)
Luminance	0.0516 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253F72 #725825

analogous

#256672 #253F72 #322572

triadic

#253F72 #72253F #3F7225

tetradic

#253F72 #722566 #725825 #257232

square

#253F72 #722566 #725825 #257232

split-complementary

#253F72 #723225 #667225

monochromatic

#070D17 #162544 #253F72 #3459A0 #4C75C5

Accessibility & contrast

On white

10.33

#253F72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#253F72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253F72

10.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253F72	#FFFFFF	#000000	##FFFFFF
##253F72	1.00	10.33	2.03	10.33
#FFFFFF	10.33	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274474

Deuteranopia (green-blind)

#1B3D71

Tritanopia (blue-blind)

#004B53

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #253f72;
/* rgb */ color: rgb(37, 63, 114);
/* oklch */ color: oklch(37.5% 0.093 262.4);

Tailwind

colors: {
  custom: {
    50: '#68739b',
    500: '#253f72',
    950: '#000000',
  },
}

SCSS

$custom: #253f72;
$custom-light: #68739b;
$custom-dark: #000000;

JSON

{
  "hex": "#253f72",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 114
  },
  "hsl": {
    "h": 219.74,
    "s": 50.993,
    "l": 29.608
  },
  "oklch": {
    "l": 0.37499,
    "c": 0.09326,
    "h": 262.4
  },
  "luminance": 0.05163
}

Semantic roles & 50–950 ramp

primary

#253F72

secondary

#A5874E

accent

#AB4DDA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #253F72

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

Preview Lab → · Contrast checker → · Palette generator →