#10354B#10354B

#10354B is a dark, muted cyan. Relative luminance 0.032; OKLCH L 31.4% C 0.057 H 238.7°. Best body text is #FFFFFF at 12.86:1 contrast (WCAG AA passes).

Color values

HEX	#10354B
RGB	rgb(16, 53, 75)
HSL	hsl(202, 65%, 18%)
HSV	hsv(202, 79%, 29%)
CMYK	cmyk(78.7%, 29.3%, 0%, 70.6%)
CIE-LAB	lab(20.69, -4.53, -17.32)
CIE-LCH	lch(20.69, 17.90, 255.34°)
OKLab	oklab(31.41% -0.0297 -0.0488)
OKLCH	oklch(31.41% 0.057 238.7)
XYZ	xyz(2.7563, 3.1641, 7.1207)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10354B #4B2610

analogous

#104B43 #10354B #10174B

triadic

#10354B #4B1035 #354B10

tetradic

#10354B #43104B #4B2610 #174B10

square

#10354B #43104B #4B2610 #174B10

split-complementary

#10354B #4B1017 #4B4310

monochromatic

#051219 #051219 #10354B #1B597D #267CB0

Accessibility & contrast

On white

12.86

#10354B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#10354B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10354B

12.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10354B	#FFFFFF	#000000	##FFFFFF
##10354B	1.00	12.86	1.63	12.86
#FFFFFF	12.86	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B354C

Deuteranopia (green-blind)

#232F4B

Tritanopia (blue-blind)

#003B3D

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #10354b;
/* rgb */ color: rgb(16, 53, 75);
/* oklch */ color: oklch(31.4% 0.057 238.7);

Tailwind

colors: {
  custom: {
    50: '#576c7d',
    500: '#10354b',
    950: '#000000',
  },
}

SCSS

$custom: #10354b;
$custom-light: #576c7d;
$custom-dark: #000000;

JSON

{
  "hex": "#10354b",
  "rgb": {
    "r": 16,
    "g": 53,
    "b": 75
  },
  "hsl": {
    "h": 202.373,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.31413,
    "c": 0.05717,
    "h": 238.7
  },
  "luminance": 0.03164
}

Semantic roles & 50–950 ramp

primary

#10354B

secondary

#855132

accent

#7F40E8

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040609

muted

#797A7B

Preview Lab

Preview with #10354B

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

Preview Lab → · Contrast checker → · Palette generator →