#10243F#10243F

#10243F is a dark, muted cyan. Relative luminance 0.017; OKLCH L 25.9% C 0.057 H 256.5°. Best body text is #FFFFFF at 15.60:1 contrast (WCAG AA passes).

Color values

HEX	#10243F
RGB	rgb(16, 36, 63)
HSL	hsl(214, 59%, 15%)
HSV	hsv(214, 75%, 25%)
CMYK	cmyk(74.6%, 42.9%, 0%, 75.3%)
CIE-LAB	lab(14.00, 2.48, -19.62)
CIE-LCH	lch(14.00, 19.77, 277.21°)
OKLab	oklab(25.92% -0.0134 -0.0557)
OKLCH	oklch(25.92% 0.057 256.5)
XYZ	xyz(1.7414, 1.7306, 4.9439)
Luminance	0.0173 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10243F #3F2B10

analogous

#103B3F #10243F #13103F

triadic

#10243F #3F1024 #243F10

tetradic

#10243F #3F103B #3F2B10 #103F13

square

#10243F #3F103B #3F2B10 #103F13

split-complementary

#10243F #3F1310 #3B3F10

monochromatic

#060E18 #060E18 #10243F #1C4070 #295CA1

Accessibility & contrast

On white

15.60

#10243F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#10243F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10243F

15.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10243F	#FFFFFF	#000000	##FFFFFF
##10243F	1.00	15.60	1.35	15.60
#FFFFFF	15.60	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#182640

Deuteranopia (green-blind)

#11223E

Tritanopia (blue-blind)

#002A2E

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #10243f;
/* rgb */ color: rgb(16, 36, 63);
/* oklch */ color: oklch(25.9% 0.057 256.5);

Tailwind

colors: {
  custom: {
    50: '#545e74',
    500: '#10243f',
    950: '#000000',
  },
}

SCSS

$custom: #10243f;
$custom-light: #545e74;
$custom-dark: #000000;

JSON

{
  "hex": "#10243f",
  "rgb": {
    "r": 16,
    "g": 36,
    "b": 63
  },
  "hsl": {
    "h": 214.468,
    "s": 59.494,
    "l": 15.49
  },
  "oklch": {
    "l": 0.25924,
    "c": 0.05734,
    "h": 256.5
  },
  "luminance": 0.01731
}

Semantic roles & 50–950 ramp

primary

#10243F

secondary

#795B32

accent

#A045E3

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030408

muted

#78797B

Preview Lab

Preview with #10243F

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

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