#10253B#10253B

#10253B is a dark, muted cyan. Relative luminance 0.017; OKLCH L 25.9% C 0.050 H 251.3°. Best body text is #FFFFFF at 15.56:1 contrast (WCAG AA passes).

Color values

HEX	#10253B
RGB	rgb(16, 37, 59)
HSL	hsl(211, 57%, 15%)
HSV	hsv(211, 73%, 23%)
CMYK	cmyk(72.9%, 37.3%, 0%, 76.9%)
CIE-LAB	lab(14.11, 0.06, -16.65)
CIE-LCH	lch(14.11, 16.65, 270.19°)
OKLab	oklab(25.92% -0.016 -0.0471)
OKLCH	oklch(25.92% 0.05 251.3)
XYZ	xyz(1.6644, 1.7489, 4.3867)
Luminance	0.0175 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10253B #3B2610

analogous

#103B3B #10253B #11103B

triadic

#10253B #3B1025 #253B10

tetradic

#10253B #3B103B #3B2610 #103B11

square

#10253B #3B103B #3B2610 #103B11

split-complementary

#10253B #3B1110 #3B3B10

monochromatic

#070F18 #070F18 #10253B #1D436B #2A619B

Accessibility & contrast

On white

15.56

#10253B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#10253B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10253B

15.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10253B	#FFFFFF	#000000	##FFFFFF
##10253B	1.00	15.56	1.35	15.56
#FFFFFF	15.56	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C263C

Deuteranopia (green-blind)

#16223B

Tritanopia (blue-blind)

#002A2D

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #10253b;
/* rgb */ color: rgb(16, 37, 59);
/* oklch */ color: oklch(25.9% 0.050 251.3);

Tailwind

colors: {
  custom: {
    50: '#535f71',
    500: '#10253b',
    950: '#000000',
  },
}

SCSS

$custom: #10253b;
$custom-light: #535f71;
$custom-dark: #000000;

JSON

{
  "hex": "#10253b",
  "rgb": {
    "r": 16,
    "g": 37,
    "b": 59
  },
  "hsl": {
    "h": 210.698,
    "s": 57.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.25925,
    "c": 0.0497,
    "h": 251.3
  },
  "luminance": 0.01749
}

Semantic roles & 50–950 ramp

primary

#10253B

secondary

#755432

accent

#9647E1

background

#F4F5F6

surface

#E8E9EC

border

#C4C5C7

text

#030407

muted

#78797A

Preview Lab

Preview with #10253B

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

Preview Lab → · Contrast checker → · Palette generator →