#10233A#10233A

#10233A is a dark, muted cyan. Relative luminance 0.016; OKLCH L 25.3% C 0.050 H 254.3°. Best body text is #FFFFFF at 15.87:1 contrast (WCAG AA passes).

Color values

HEX	#10233A
RGB	rgb(16, 35, 58)
HSL	hsl(213, 57%, 15%)
HSV	hsv(213, 72%, 23%)
CMYK	cmyk(72.4%, 39.7%, 0%, 77.3%)
CIE-LAB	lab(13.34, 1.11, -17.16)
CIE-LCH	lch(13.34, 17.20, 273.69°)
OKLab	oklab(25.3% -0.0137 -0.0486)
OKLCH	oklch(25.3% 0.05 254.3)
XYZ	xyz(1.5782, 1.6176, 4.2312)
Luminance	0.0162 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10233A #3A2710

analogous

#10383A #10233A #12103A

triadic

#10233A #3A1023 #233A10

tetradic

#10233A #3A1038 #3A2710 #103A12

square

#10233A #3A1038 #3A2710 #103A12

split-complementary

#10233A #3A1210 #383A10

monochromatic

#070E18 #070E18 #10233A #1D406A #2A5D9A

Accessibility & contrast

On white

15.87

#10233A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#10233A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10233A

15.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10233A	#FFFFFF	#000000	##FFFFFF
##10233A	1.00	15.87	1.32	15.87
#FFFFFF	15.87	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19243B

Deuteranopia (green-blind)

#13203A

Tritanopia (blue-blind)

#00282B

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #10233a;
/* rgb */ color: rgb(16, 35, 58);
/* oklch */ color: oklch(25.3% 0.050 254.3);

Tailwind

colors: {
  custom: {
    50: '#535d70',
    500: '#10233a',
    950: '#000000',
  },
}

SCSS

$custom: #10233a;
$custom-light: #535d70;
$custom-dark: #000000;

JSON

{
  "hex": "#10233a",
  "rgb": {
    "r": 16,
    "g": 35,
    "b": 58
  },
  "hsl": {
    "h": 212.857,
    "s": 56.757,
    "l": 14.51
  },
  "oklch": {
    "l": 0.253,
    "c": 0.05048,
    "h": 254.3
  },
  "luminance": 0.01618
}

Semantic roles & 50–950 ramp

primary

#10233A

secondary

#745632

accent

#9B48E0

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#030407

muted

#78797A

Preview Lab

Preview with #10233A

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

Preview Lab → · Contrast checker → · Palette generator →