#253BA3#253BA3

#253BA3 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.7% C 0.169 H 268.3°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#253BA3
RGB	rgb(37, 59, 163)
HSL	hsl(230, 63%, 39%)
HSV	hsv(230, 77%, 64%)
CMYK	cmyk(77.3%, 63.8%, 0%, 36.1%)
CIE-LAB	lab(29.82, 29.83, -58.47)
CIE-LCH	lch(29.82, 65.64, 297.03°)
OKLab	oklab(40.67% -0.0049 -0.1691)
OKLCH	oklch(40.67% 0.169 268.3)
XYZ	xyz(8.9355, 6.1646, 35.3622)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253BA3 #A38D25

analogous

#257AA3 #253BA3 #4E25A3

triadic

#253BA3 #A3253B #3BA325

tetradic

#253BA3 #A3257A #A38D25 #25A34E

square

#253BA3 #A3257A #A38D25 #25A34E

split-complementary

#253BA3 #A34E25 #7AA325

monochromatic

#0E173F #1A2971 #253BA3 #3450D1 #667BDC

Accessibility & contrast

On white

9.40

#253BA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#253BA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253BA3

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253BA3	#FFFFFF	#000000	##FFFFFF
##253BA3	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA6

Deuteranopia (green-blind)

#0040A1

Tritanopia (blue-blind)

#005669

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #253ba3;
/* rgb */ color: rgb(37, 59, 163);
/* oklch */ color: oklch(40.7% 0.169 268.3);

Tailwind

colors: {
  custom: {
    50: '#7470bf',
    500: '#253ba3',
    950: '#000000',
  },
}

SCSS

$custom: #253ba3;
$custom-light: #7470bf;
$custom-dark: #000000;

JSON

{
  "hex": "#253ba3",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 163
  },
  "hsl": {
    "h": 229.524,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.40666,
    "c": 0.16915,
    "h": 268.3
  },
  "luminance": 0.06166
}

Semantic roles & 50–950 ramp

primary

#253BA3

secondary

#C2B162

accent

#C942E6

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #253BA3

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

Preview Lab → · Contrast checker → · Palette generator →