#25539C#25539C

#25539C is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.1% C 0.129 H 259.4°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#25539C
RGB	rgb(37, 83, 156)
HSL	hsl(217, 62%, 38%)
HSV	hsv(217, 76%, 61%)
CMYK	cmyk(76.3%, 46.8%, 0%, 38.8%)
CIE-LAB	lab(35.94, 11.00, -44.32)
CIE-LCH	lch(35.94, 45.67, 283.94°)
OKLab	oklab(45.12% -0.0238 -0.1271)
OKLCH	oklch(45.12% 0.129 259.4)
XYZ	xyz(9.8548, 8.9790, 32.6598)
Luminance	0.0898 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#25539C #9C6E25

analogous

#258E9C #25539C #33259C

triadic

#25539C #9C2553 #539C25

tetradic

#25539C #9C258E #9C6E25 #259C33

square

#25539C #9C258E #9C6E25 #259C33

split-complementary

#25539C #9C3325 #8E9C25

monochromatic

#0E1E39 #19396B #25539C #316DCD #6290DA

Accessibility & contrast

On white

7.51

#25539C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#25539C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #25539C

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##25539C	#FFFFFF	#000000	##FFFFFF
##25539C	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D5A9F

Deuteranopia (green-blind)

#114F9B

Tritanopia (blue-blind)

#006470

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #25539c;
/* rgb */ color: rgb(37, 83, 156);
/* oklch */ color: oklch(45.1% 0.129 259.4);

Tailwind

colors: {
  custom: {
    50: '#7182ba',
    500: '#25539c',
    950: '#000000',
  },
}

SCSS

$custom: #25539c;
$custom-light: #7182ba;
$custom-dark: #000000;

JSON

{
  "hex": "#25539c",
  "rgb": {
    "r": 37,
    "g": 83,
    "b": 156
  },
  "hsl": {
    "h": 216.807,
    "s": 61.658,
    "l": 37.843
  },
  "oklch": {
    "l": 0.4512,
    "c": 0.12932,
    "h": 259.4
  },
  "luminance": 0.0898
}

Semantic roles & 50–950 ramp

primary

#25539C

secondary

#BF995E

accent

#A643E5

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #25539C

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

Preview Lab → · Contrast checker → · Palette generator →