#10275A#10275A

#10275A is a dark, moderate blue. Relative luminance 0.023; OKLCH L 28.9% C 0.096 H 263.3°. Best body text is #FFFFFF at 14.39:1 contrast (WCAG AA passes).

Color values

HEX	#10275A
RGB	rgb(16, 39, 90)
HSL	hsl(221, 70%, 21%)
HSV	hsv(221, 82%, 35%)
CMYK	cmyk(82.2%, 56.7%, 0%, 64.7%)
CIE-LAB	lab(16.98, 11.95, -33.27)
CIE-LCH	lch(16.98, 35.35, 289.76°)
OKLab	oklab(28.85% -0.0112 -0.0958)
OKLCH	oklch(28.85% 0.096 263.3)
XYZ	xyz(2.7840, 2.2991, 9.9679)
Luminance	0.0230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10275A #5A4310

analogous

#104C5A #10275A #1E105A

triadic

#10275A #5A1027 #275A10

tetradic

#10275A #5A104C #5A4310 #105A1E

square

#10275A #5A104C #5A4310 #105A1E

split-complementary

#10275A #5A1E10 #4C5A10

monochromatic

#050B1A #071026 #10275A #193E8E #2254C2

Accessibility & contrast

On white

14.39

#10275A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#10275A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10275A

14.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10275A	#FFFFFF	#000000	##FFFFFF
##10275A	1.00	14.39	1.46	14.39
#FFFFFF	14.39	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#042D5C

Deuteranopia (green-blind)

#002759

Tritanopia (blue-blind)

#00333C

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #10275a;
/* rgb */ color: rgb(16, 39, 90);
/* oklch */ color: oklch(28.9% 0.096 263.3);

Tailwind

colors: {
  custom: {
    50: '#5b6089',
    500: '#10275a',
    950: '#000000',
  },
}

SCSS

$custom: #10275a;
$custom-light: #5b6089;
$custom-dark: #000000;

JSON

{
  "hex": "#10275a",
  "rgb": {
    "r": 16,
    "g": 39,
    "b": 90
  },
  "hsl": {
    "h": 221.351,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.28853,
    "c": 0.09646,
    "h": 263.3
  },
  "luminance": 0.02299
}

Semantic roles & 50–950 ramp

primary

#10275A

secondary

#937533

accent

#B53BED

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#04040B

muted

#79797C

Preview Lab

Preview with #10275A

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

Preview Lab → · Contrast checker → · Palette generator →