#10197E#10197E

#10197E is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.0% C 0.164 H 268.1°. Best body text is #FFFFFF at 14.36:1 contrast (WCAG AA passes).

Color values

HEX	#10197E
RGB	rgb(16, 25, 126)
HSL	hsl(235, 77%, 28%)
HSV	hsv(235, 87%, 49%)
CMYK	cmyk(87.3%, 80.2%, 0%, 50.6%)
CIE-LAB	lab(17.04, 36.09, -56.63)
CIE-LCH	lch(17.04, 67.16, 302.51°)
OKLab	oklab(30.01% -0.0055 -0.1641)
OKLCH	oklch(30.01% 0.164 268.1)
XYZ	xyz(4.3259, 2.3112, 19.9527)
Luminance	0.0231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10197E #7E7510

analogous

#10507E #10197E #3E107E

triadic

#10197E #7E1019 #197E10

tetradic

#10197E #7E1050 #7E7510 #107E3E

square

#10197E #7E1050 #7E7510 #107E3E

split-complementary

#10197E #7E3E10 #507E10

monochromatic

#03051B #090E48 #10197E #1724B4 #2535E3

Accessibility & contrast

On white

14.36

#10197E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#10197E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10197E

14.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10197E	#FFFFFF	#000000	##FFFFFF
##10197E	1.00	14.36	1.46	14.36
#FFFFFF	14.36	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F81

Deuteranopia (green-blind)

#00247C

Tritanopia (blue-blind)

#00384B

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #10197e;
/* rgb */ color: rgb(16, 25, 126);
/* oklch */ color: oklch(30.0% 0.164 268.1);

Tailwind

colors: {
  custom: {
    50: '#6757a5',
    500: '#10197e',
    950: '#000000',
  },
}

SCSS

$custom: #10197e;
$custom-light: #6757a5;
$custom-dark: #000000;

JSON

{
  "hex": "#10197e",
  "rgb": {
    "r": 16,
    "g": 25,
    "b": 126
  },
  "hsl": {
    "h": 235.091,
    "s": 77.465,
    "l": 27.843
  },
  "oklch": {
    "l": 0.30008,
    "c": 0.1642,
    "h": 268.1
  },
  "luminance": 0.02312
}

Semantic roles & 50–950 ramp

primary

#10197E

secondary

#B4AA36

accent

#E434F4

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #10197E

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

Preview Lab → · Contrast checker → · Palette generator →