#10358E#10358E

#10358E is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.7% C 0.153 H 263.5°. Best body text is #FFFFFF at 10.93:1 contrast (WCAG AA passes).

Color values

HEX	#10358E
RGB	rgb(16, 53, 142)
HSL	hsl(222, 80%, 31%)
HSV	hsv(222, 89%, 56%)
CMYK	cmyk(88.7%, 62.7%, 0%, 44.3%)
CIE-LAB	lab(25.59, 23.81, -52.60)
CIE-LCH	lch(25.59, 57.73, 294.35°)
OKLab	oklab(36.73% -0.0174 -0.1523)
OKLCH	oklch(36.73% 0.153 263.5)
XYZ	xyz(6.3675, 4.6086, 26.1399)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10358E #8E6910

analogous

#10748E #10358E #2A108E

triadic

#10358E #8E1035 #358E10

tetradic

#10358E #8E1074 #8E6910 #108E2A

square

#10358E #8E1074 #8E6910 #108E2A

split-complementary

#10358E #8E2A10 #748E10

monochromatic

#040C20 #0A2057 #10358E #164AC5 #3166E8

Accessibility & contrast

On white

10.93

#10358E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#10358E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10358E

10.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10358E	#FFFFFF	#000000	##FFFFFF
##10358E	1.00	10.93	1.92	10.93
#FFFFFF	10.93	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004391

Deuteranopia (green-blind)

#00378C

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #10358e;
/* rgb */ color: rgb(16, 53, 142);
/* oklch */ color: oklch(36.7% 0.153 263.5);

Tailwind

colors: {
  custom: {
    50: '#696bb0',
    500: '#10358e',
    950: '#000000',
  },
}

SCSS

$custom: #10358e;
$custom-light: #696bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#10358e",
  "rgb": {
    "r": 16,
    "g": 53,
    "b": 142
  },
  "hsl": {
    "h": 222.381,
    "s": 79.747,
    "l": 30.98
  },
  "oklch": {
    "l": 0.36731,
    "c": 0.15329,
    "h": 263.5
  },
  "luminance": 0.04609
}

Semantic roles & 50–950 ramp

primary

#10358E

secondary

#C39A37

accent

#BC32F6

background

#F6F6FA

surface

#ECEBF5

border

#C7C6CF

text

#080611

muted

#7A7A80

Preview Lab

Preview with #10358E

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

Preview Lab → · Contrast checker → · Palette generator →