#10203F#10203F

#10203F is a very dark, moderate blue. Relative luminance 0.015; OKLCH L 24.9% C 0.063 H 262.2°. Best body text is #FFFFFF at 16.15:1 contrast (WCAG AA passes).

Color values

HEX	#10203F
RGB	rgb(16, 32, 63)
HSL	hsl(220, 59%, 15%)
HSV	hsv(220, 75%, 25%)
CMYK	cmyk(74.6%, 49.2%, 0%, 75.3%)
CIE-LAB	lab(12.62, 5.50, -21.82)
CIE-LCH	lch(12.62, 22.50, 284.15°)
OKLab	oklab(24.85% -0.0085 -0.0623)
OKLCH	oklch(24.85% 0.063 262.2)
XYZ	xyz(1.6271, 1.5019, 4.9058)
Luminance	0.0150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10203F #3F2F10

analogous

#10373F #10203F #17103F

triadic

#10203F #3F1020 #203F10

tetradic

#10203F #3F1037 #3F2F10 #103F17

square

#10203F #3F1037 #3F2F10 #103F17

split-complementary

#10203F #3F1710 #373F10

monochromatic

#060C18 #060C18 #10203F #1C3970 #2952A1

Accessibility & contrast

On white

16.15

#10203F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#10203F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10203F

16.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10203F	#FFFFFF	#000000	##FFFFFF
##10203F	1.00	16.15	1.30	16.15
#FFFFFF	16.15	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#112340

Deuteranopia (green-blind)

#0A1F3E

Tritanopia (blue-blind)

#00272C

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #10203f;
/* rgb */ color: rgb(16, 32, 63);
/* oklch */ color: oklch(24.9% 0.063 262.2);

Tailwind

colors: {
  custom: {
    50: '#545b74',
    500: '#10203f',
    950: '#000000',
  },
}

SCSS

$custom: #10203f;
$custom-light: #545b74;
$custom-dark: #000000;

JSON

{
  "hex": "#10203f",
  "rgb": {
    "r": 16,
    "g": 32,
    "b": 63
  },
  "hsl": {
    "h": 219.574,
    "s": 59.494,
    "l": 15.49
  },
  "oklch": {
    "l": 0.24851,
    "c": 0.06286,
    "h": 262.2
  },
  "luminance": 0.01502
}

Semantic roles & 50–950 ramp

primary

#10203F

secondary

#796132

accent

#AD45E3

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030408

muted

#78797B

Preview Lab

Preview with #10203F

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

Preview Lab → · Contrast checker → · Palette generator →