#10258D#10258D

#10258D is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.6% C 0.171 H 266.4°. Best body text is #FFFFFF at 12.57:1 contrast (WCAG AA passes).

Color values

HEX	#10258D
RGB	rgb(16, 37, 141)
HSL	hsl(230, 80%, 31%)
HSV	hsv(230, 89%, 55%)
CMYK	cmyk(88.7%, 73.8%, 0%, 44.7%)
CIE-LAB	lab(21.42, 34.22, -58.84)
CIE-LCH	lch(21.42, 68.07, 300.18°)
OKLab	oklab(33.64% -0.0107 -0.1706)
OKLCH	oklch(33.64% 0.171 266.4)
XYZ	xyz(5.6813, 3.3557, 25.5424)
Luminance	0.0336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10258D #8D7810

analogous

#10638D #10258D #39108D

triadic

#10258D #8D1025 #258D10

tetradic

#10258D #8D1063 #8D7810 #108D39

square

#10258D #8D1063 #8D7810 #108D39

split-complementary

#10258D #8D3910 #638D10

monochromatic

#04081F #0A1756 #10258D #1633C4 #304FE7

Accessibility & contrast

On white

12.57

#10258D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#10258D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10258D

12.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10258D	#FFFFFF	#000000	##FFFFFF
##10258D	1.00	12.57	1.67	12.57
#FFFFFF	12.57	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003990

Deuteranopia (green-blind)

#002D8B

Tritanopia (blue-blind)

#004356

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #10258d;
/* rgb */ color: rgb(16, 37, 141);
/* oklch */ color: oklch(33.6% 0.171 266.4);

Tailwind

colors: {
  custom: {
    50: '#6a60af',
    500: '#10258d',
    950: '#000000',
  },
}

SCSS

$custom: #10258d;
$custom-light: #6a60af;
$custom-dark: #000000;

JSON

{
  "hex": "#10258d",
  "rgb": {
    "r": 16,
    "g": 37,
    "b": 141
  },
  "hsl": {
    "h": 229.92,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.3364,
    "c": 0.17095,
    "h": 266.4
  },
  "luminance": 0.03356
}

Semantic roles & 50–950 ramp

primary

#10258D

secondary

#C2AA37

accent

#D532F6

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#080511

muted

#7B7980

Preview Lab

Preview with #10258D

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

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