#15277B#15277B

#15277B is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.2% C 0.143 H 267.6°. Best body text is #FFFFFF at 13.06:1 contrast (WCAG AA passes).

Color values

HEX	#15277B
RGB	rgb(21, 39, 123)
HSL	hsl(229, 71%, 28%)
HSV	hsv(229, 83%, 48%)
CMYK	cmyk(82.9%, 68.3%, 0%, 51.8%)
CIE-LAB	lab(20.20, 26.28, -49.50)
CIE-LCH	lch(20.20, 56.04, 297.96°)
OKLab	oklab(32.24% -0.0061 -0.1433)
OKLCH	oklch(32.24% 0.143 267.6)
XYZ	xyz(4.6087, 3.0400, 19.0789)
Luminance	0.0304 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15277B #7B6915

analogous

#155A7B #15277B #36157B

triadic

#15277B #7B1527 #277B15

tetradic

#15277B #7B155A #7B6915 #157B36

square

#15277B #7B155A #7B6915 #157B36

split-complementary

#15277B #7B3615 #5A7B15

monochromatic

#04081A #0C1647 #15277B #1E38AF #2F4DDB

Accessibility & contrast

On white

13.06

#15277B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#15277B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15277B

13.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15277B	#FFFFFF	#000000	##FFFFFF
##15277B	1.00	13.06	1.61	13.06
#FFFFFF	13.06	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367E

Deuteranopia (green-blind)

#002C79

Tritanopia (blue-blind)

#003E4D

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #15277b;
/* rgb */ color: rgb(21, 39, 123);
/* oklch */ color: oklch(32.2% 0.143 267.6);

Tailwind

colors: {
  custom: {
    50: '#6661a2',
    500: '#15277b',
    950: '#000000',
  },
}

SCSS

$custom: #15277b;
$custom-light: #6661a2;
$custom-dark: #000000;

JSON

{
  "hex": "#15277b",
  "rgb": {
    "r": 21,
    "g": 39,
    "b": 123
  },
  "hsl": {
    "h": 229.412,
    "s": 70.833,
    "l": 28.235
  },
  "oklch": {
    "l": 0.32244,
    "c": 0.14345,
    "h": 267.6
  },
  "luminance": 0.03041
}

Semantic roles & 50–950 ramp

primary

#15277B

secondary

#B09C3B

accent

#CE3AEE

background

#F6F5FA

surface

#EBE9F4

border

#C6C5CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #15277B

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

Preview Lab → · Contrast checker → · Palette generator →