#10283A#10283A

#10283A is a dark, muted cyan. Relative luminance 0.019; OKLCH L 26.7% C 0.045 H 243.3°. Best body text is #FFFFFF at 15.14:1 contrast (WCAG AA passes).

Color values

HEX	#10283A
RGB	rgb(16, 40, 58)
HSL	hsl(206, 57%, 15%)
HSV	hsv(206, 72%, 23%)
CMYK	cmyk(72.4%, 31%, 0%, 77.3%)
CIE-LAB	lab(15.13, -2.52, -14.35)
CIE-LCH	lch(15.13, 14.57, 260.05°)
OKLab	oklab(26.71% -0.0203 -0.0404)
OKLCH	oklch(26.71% 0.045 243.3)
XYZ	xyz(1.7359, 1.9331, 4.2838)
Luminance	0.0193 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10283A #3A2210

analogous

#103A37 #10283A #10133A

triadic

#10283A #3A1028 #283A10

tetradic

#10283A #37103A #3A2210 #133A10

square

#10283A #37103A #3A2210 #133A10

split-complementary

#10283A #3A1013 #3A3710

monochromatic

#071118 #071118 #10283A #1D496A #2A6A9A

Accessibility & contrast

On white

15.14

#10283A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#10283A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10283A

15.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10283A	#FFFFFF	#000000	##FFFFFF
##10283A	1.00	15.14	1.39	15.14
#FFFFFF	15.14	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#20283B

Deuteranopia (green-blind)

#1A243A

Tritanopia (blue-blind)

#002C2E

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #10283a;
/* rgb */ color: rgb(16, 40, 58);
/* oklch */ color: oklch(26.7% 0.045 243.3);

Tailwind

colors: {
  custom: {
    50: '#536170',
    500: '#10283a',
    950: '#000000',
  },
}

SCSS

$custom: #10283a;
$custom-light: #536170;
$custom-dark: #000000;

JSON

{
  "hex": "#10283a",
  "rgb": {
    "r": 16,
    "g": 40,
    "b": 58
  },
  "hsl": {
    "h": 205.714,
    "s": 56.757,
    "l": 14.51
  },
  "oklch": {
    "l": 0.26711,
    "c": 0.04517,
    "h": 243.3
  },
  "luminance": 0.01933
}

Semantic roles & 50–950 ramp

primary

#10283A

secondary

#744E32

accent

#8948E0

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#030507

muted

#78797A

Preview Lab

Preview with #10283A

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

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