#153B7E#153B7E

#153B7E is a dark, vivid blue. Relative luminance 0.048; OKLCH L 36.8% C 0.122 H 260.8°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#153B7E
RGB	rgb(21, 59, 126)
HSL	hsl(218, 71%, 29%)
HSV	hsv(218, 83%, 49%)
CMYK	cmyk(83.3%, 53.2%, 0%, 50.6%)
CIE-LAB	lab(26.14, 13.37, -41.72)
CIE-LCH	lch(26.14, 43.81, 287.77°)
OKLab	oklab(36.77% -0.0194 -0.1202)
OKLCH	oklch(36.77% 0.122 260.8)
XYZ	xyz(5.6378, 4.7930, 20.3626)
Luminance	0.0479 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B7E #7E5815

analogous

#15707E #153B7E #24157E

triadic

#153B7E #7E153B #3B7E15

tetradic

#153B7E #7E1570 #7E5815 #157E24

square

#153B7E #7E1570 #7E5815 #157E24

split-complementary

#153B7E #7E2415 #707E15

monochromatic

#040C1A #0C224A #153B7E #1E54B2 #316FDD

Accessibility & contrast

On white

10.72

#153B7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#153B7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B7E

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B7E	#FFFFFF	#000000	##FFFFFF
##153B7E	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E4380

Deuteranopia (green-blind)

#00397D

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #153b7e;
/* rgb */ color: rgb(21, 59, 126);
/* oklch */ color: oklch(36.8% 0.122 260.8);

Tailwind

colors: {
  custom: {
    50: '#6570a4',
    500: '#153b7e',
    950: '#000000',
  },
}

SCSS

$custom: #153b7e;
$custom-light: #6570a4;
$custom-dark: #000000;

JSON

{
  "hex": "#153b7e",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 126
  },
  "hsl": {
    "h": 218.286,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.3677,
    "c": 0.12174,
    "h": 260.8
  },
  "luminance": 0.04794
}

Semantic roles & 50–950 ramp

primary

#153B7E

secondary

#B3883C

accent

#AD3AEE

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #153B7E

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

Preview Lab → · Contrast checker → · Palette generator →