#102F7B#102F7B

#102F7B is a dark, vivid blue. Relative luminance 0.036; OKLCH L 33.7% C 0.135 H 263.8°. Best body text is #FFFFFF at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#102F7B
RGB	rgb(16, 47, 123)
HSL	hsl(223, 77%, 27%)
HSV	hsv(223, 87%, 48%)
CMYK	cmyk(87%, 61.8%, 0%, 51.8%)
CIE-LAB	lab(22.21, 20.19, -46.23)
CIE-LCH	lch(22.21, 50.44, 293.59°)
OKLab	oklab(33.67% -0.0146 -0.1337)
OKLCH	oklch(33.67% 0.135 263.8)
XYZ	xyz(4.8041, 3.5727, 19.1714)
Luminance	0.0357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#102F7B #7B5C10

analogous

#10647B #102F7B #27107B

triadic

#102F7B #7B102F #2F7B10

tetradic

#102F7B #7B1064 #7B5C10 #107B27

square

#102F7B #7B1064 #7B5C10 #107B27

split-complementary

#102F7B #7B2710 #647B10

monochromatic

#040A1B #091A45 #102F7B #1744B1 #235AE2

Accessibility & contrast

On white

12.25

#102F7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#102F7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #102F7B

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##102F7B	#FFFFFF	#000000	##FFFFFF
##102F7B	1.00	12.25	1.71	12.25
#FFFFFF	12.25	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A7E

Deuteranopia (green-blind)

#00307A

Tritanopia (blue-blind)

#004250

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #102f7b;
/* rgb */ color: rgb(16, 47, 123);
/* oklch */ color: oklch(33.7% 0.135 263.8);

Tailwind

colors: {
  custom: {
    50: '#6467a2',
    500: '#102f7b',
    950: '#000000',
  },
}

SCSS

$custom: #102f7b;
$custom-light: #6467a2;
$custom-dark: #000000;

JSON

{
  "hex": "#102f7b",
  "rgb": {
    "r": 16,
    "g": 47,
    "b": 123
  },
  "hsl": {
    "h": 222.617,
    "s": 76.978,
    "l": 27.255
  },
  "oklch": {
    "l": 0.33675,
    "c": 0.13452,
    "h": 263.8
  },
  "luminance": 0.03573
}

Semantic roles & 50–950 ramp

primary

#102F7B

secondary

#B28E35

accent

#BC34F4

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#06060F

muted

#7A7A7F

Preview Lab

Preview with #102F7B

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

Preview Lab → · Contrast checker → · Palette generator →