#153C9E#153C9E

#153C9E is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.8% C 0.165 H 263.8°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#153C9E
RGB	rgb(21, 60, 158)
HSL	hsl(223, 77%, 35%)
HSV	hsv(223, 87%, 62%)
CMYK	cmyk(86.7%, 62%, 0%, 38%)
CIE-LAB	lab(29.05, 25.79, -56.73)
CIE-LCH	lch(29.05, 62.31, 294.45°)
OKLab	oklab(39.79% -0.0177 -0.1642)
OKLCH	oklch(39.79% 0.165 263.8)
XYZ	xyz(8.0945, 5.8588, 33.0453)
Luminance	0.0586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C9E #9E7715

analogous

#15809E #153C9E #33159E

triadic

#153C9E #9E153C #3C9E15

tetradic

#153C9E #9E1580 #9E7715 #159E33

square

#153C9E #9E1580 #9E7715 #159E33

split-complementary

#153C9E #9E3315 #809E15

monochromatic

#071332 #0E2768 #153C9E #1C51D4 #4774E7

Accessibility & contrast

On white

9.67

#153C9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#153C9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C9E

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C9E	#FFFFFF	#000000	##FFFFFF
##153C9E	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA1

Deuteranopia (green-blind)

#003E9C

Tritanopia (blue-blind)

#005567

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #153c9e;
/* rgb */ color: rgb(21, 60, 158);
/* oklch */ color: oklch(39.8% 0.165 263.8);

Tailwind

colors: {
  custom: {
    50: '#6e71bc',
    500: '#153c9e',
    950: '#000000',
  },
}

SCSS

$custom: #153c9e;
$custom-light: #6e71bc;
$custom-dark: #000000;

JSON

{
  "hex": "#153c9e",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 158
  },
  "hsl": {
    "h": 222.92,
    "s": 76.536,
    "l": 35.098
  },
  "oklch": {
    "l": 0.39793,
    "c": 0.16518,
    "h": 263.8
  },
  "luminance": 0.0586
}

Semantic roles & 50–950 ramp

primary

#153C9E

secondary

#C7A347

accent

#BD35F3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #153C9E

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

Preview Lab → · Contrast checker → · Palette generator →