#10243E#10243E

#10243E is a dark, muted cyan. Relative luminance 0.017; OKLCH L 25.9% C 0.056 H 255.8°. Best body text is #FFFFFF at 15.62:1 contrast (WCAG AA passes).

Color values

HEX	#10243E
RGB	rgb(16, 36, 62)
HSL	hsl(214, 59%, 15%)
HSV	hsv(214, 74%, 24%)
CMYK	cmyk(74.2%, 41.9%, 0%, 75.7%)
CIE-LAB	lab(13.94, 2.06, -19.02)
CIE-LCH	lch(13.94, 19.13, 276.17°)
OKLab	oklab(25.85% -0.0137 -0.054)
OKLCH	oklch(25.85% 0.056 255.8)
XYZ	xyz(1.7137, 1.7195, 4.7981)
Luminance	0.0172 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10243E #3E2A10

analogous

#103B3E #10243E #13103E

triadic

#10243E #3E1024 #243E10

tetradic

#10243E #3E103B #3E2A10 #103E13

square

#10243E #3E103B #3E2A10 #103E13

split-complementary

#10243E #3E1310 #3B3E10

monochromatic

#060E18 #060E18 #10243E #1D406F #295C9F

Accessibility & contrast

On white

15.62

#10243E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#10243E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10243E

15.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10243E	#FFFFFF	#000000	##FFFFFF
##10243E	1.00	15.62	1.34	15.62
#FFFFFF	15.62	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19263F

Deuteranopia (green-blind)

#12213D

Tritanopia (blue-blind)

#002A2E

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #10243e;
/* rgb */ color: rgb(16, 36, 62);
/* oklch */ color: oklch(25.9% 0.056 255.8);

Tailwind

colors: {
  custom: {
    50: '#545e73',
    500: '#10243e',
    950: '#000000',
  },
}

SCSS

$custom: #10243e;
$custom-light: #545e73;
$custom-dark: #000000;

JSON

{
  "hex": "#10243e",
  "rgb": {
    "r": 16,
    "g": 36,
    "b": 62
  },
  "hsl": {
    "h": 213.913,
    "s": 58.974,
    "l": 15.294
  },
  "oklch": {
    "l": 0.25853,
    "c": 0.05571,
    "h": 255.8
  },
  "luminance": 0.0172
}

Semantic roles & 50–950 ramp

primary

#10243E

secondary

#785932

accent

#9E46E2

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030408

muted

#78797B

Preview Lab

Preview with #10243E

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

Preview Lab → · Contrast checker → · Palette generator →