#10455B#10455B

#10455B is a dark, moderate cyan. Relative luminance 0.051; OKLCH L 36.8% C 0.065 H 230.6°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#10455B
RGB	rgb(16, 69, 91)
HSL	hsl(198, 70%, 21%)
HSV	hsv(198, 82%, 36%)
CMYK	cmyk(82.4%, 24.2%, 0%, 64.3%)
CIE-LAB	lab(27.08, -8.50, -17.91)
CIE-LCH	lch(27.08, 19.82, 244.62°)
OKLab	oklab(36.77% -0.0414 -0.0504)
OKLCH	oklch(36.77% 0.065 230.6)
XYZ	xyz(4.2294, 5.1212, 10.6611)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10455B #5B2610

analogous

#105B4B #10455B #101F5B

triadic

#10455B #5B1045 #455B10

tetradic

#10455B #4B105B #5B2610 #1F5B10

square

#10455B #4B105B #5B2610 #1F5B10

split-complementary

#10455B #5B101F #5B4B10

monochromatic

#05141A #071E27 #10455B #196C8F #2294C3

Accessibility & contrast

On white

10.37

#10455B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#10455B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10455B

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10455B	#FFFFFF	#000000	##FFFFFF
##10455B	1.00	10.37	2.02	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A445C

Deuteranopia (green-blind)

#303D5B

Tritanopia (blue-blind)

#004B4C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #10455b;
/* rgb */ color: rgb(16, 69, 91);
/* oklch */ color: oklch(36.8% 0.065 230.6);

Tailwind

colors: {
  custom: {
    50: '#5c7889',
    500: '#10455b',
    950: '#000000',
  },
}

SCSS

$custom: #10455b;
$custom-light: #5c7889;
$custom-dark: #000000;

JSON

{
  "hex": "#10455b",
  "rgb": {
    "r": 16,
    "g": 69,
    "b": 91
  },
  "hsl": {
    "h": 197.6,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.36767,
    "c": 0.06522,
    "h": 230.6
  },
  "luminance": 0.05122
}

Semantic roles & 50–950 ramp

primary

#10455B

secondary

#944F33

accent

#6F3BED

background

#F5F7F8

surface

#E9EDF0

border

#C5C8CB

text

#04090B

muted

#797B7C

Preview Lab

Preview with #10455B

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

Preview Lab → · Contrast checker → · Palette generator →