#251687#251687

#251687 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.9% C 0.172 H 276.3°. Best body text is #FFFFFF at 13.61:1 contrast (WCAG AA passes).

Color values

HEX	#251687
RGB	rgb(37, 22, 135)
HSL	hsl(248, 72%, 31%)
HSV	hsv(248, 84%, 53%)
CMYK	cmyk(72.6%, 83.7%, 0%, 47.1%)
CIE-LAB	lab(18.87, 42.18, -59.26)
CIE-LCH	lch(18.87, 72.74, 305.44°)
OKLab	oklab(31.94% 0.0191 -0.1713)
OKLCH	oklch(31.94% 0.172 276.3)
XYZ	xyz(5.4216, 2.7159, 23.1555)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#251687 #788716

analogous

#163F87 #251687 #5D1687

triadic

#251687 #872516 #168725

tetradic

#251687 #87163F #788716 #16875D

square

#251687 #87163F #788716 #16875D

split-complementary

#251687 #875D16 #3F8716

monochromatic

#08051E #170D52 #251687 #331FBC #4F39DF

Accessibility & contrast

On white

13.61

#251687 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#251687 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #251687

13.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##251687	#FFFFFF	#000000	##FFFFFF
##251687	1.00	13.61	1.54	13.61
#FFFFFF	13.61	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00328A

Deuteranopia (green-blind)

#002985

Tritanopia (blue-blind)

#003A50

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #251687;
/* rgb */ color: rgb(37, 22, 135);
/* oklch */ color: oklch(31.9% 0.172 276.3);

Tailwind

colors: {
  custom: {
    50: '#7157ab',
    500: '#251687',
    950: '#000000',
  },
}

SCSS

$custom: #251687;
$custom-light: #7157ab;
$custom-dark: #000000;

JSON

{
  "hex": "#251687",
  "rgb": {
    "r": 37,
    "g": 22,
    "b": 135
  },
  "hsl": {
    "h": 247.965,
    "s": 71.975,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31943,
    "c": 0.17234,
    "h": 276.3
  },
  "luminance": 0.02716
}

Semantic roles & 50–950 ramp

primary

#251687

secondary

#AABB3E

accent

#EF39D7

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #251687

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

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