#153A8F#153A8F

#153A8F is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.0% C 0.147 H 263.3°. Best body text is #FFFFFF at 10.33:1 contrast (WCAG AA passes).

Color values

HEX	#153A8F
RGB	rgb(21, 58, 143)
HSL	hsl(222, 74%, 32%)
HSV	hsv(222, 85%, 56%)
CMYK	cmyk(85.3%, 59.4%, 0%, 43.9%)
CIE-LAB	lab(27.21, 21.11, -50.56)
CIE-LCH	lch(27.21, 54.79, 292.66°)
OKLab	oklab(38.01% -0.0171 -0.1462)
OKLCH	oklch(38.01% 0.147 263.3)
XYZ	xyz(6.7785, 5.1679, 26.6215)
Luminance	0.0517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A8F #8F6A15

analogous

#15778F #153A8F #2D158F

triadic

#153A8F #8F153A #3A8F15

tetradic

#153A8F #8F1577 #8F6A15 #158F2D

square

#153A8F #8F1577 #8F6A15 #158F2D

split-complementary

#153A8F #8F2D15 #778F15

monochromatic

#050F24 #0D245A #153A8F #1D50C4 #3C6EE2

Accessibility & contrast

On white

10.33

#153A8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#153A8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A8F

10.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A8F	#FFFFFF	#000000	##FFFFFF
##153A8F	1.00	10.33	2.03	10.33
#FFFFFF	10.33	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004692

Deuteranopia (green-blind)

#003B8D

Tritanopia (blue-blind)

#00505E

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #153a8f;
/* rgb */ color: rgb(21, 58, 143);
/* oklch */ color: oklch(38.0% 0.147 263.3);

Tailwind

colors: {
  custom: {
    50: '#6a6fb1',
    500: '#153a8f',
    950: '#000000',
  },
}

SCSS

$custom: #153a8f;
$custom-light: #6a6fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#153a8f",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 143
  },
  "hsl": {
    "h": 221.803,
    "s": 74.39,
    "l": 32.157
  },
  "oklch": {
    "l": 0.3801,
    "c": 0.14719,
    "h": 263.3
  },
  "luminance": 0.05169
}

Semantic roles & 50–950 ramp

primary

#153A8F

secondary

#C29A3E

accent

#B937F1

background

#F6F6FB

surface

#ECECF6

border

#C7C7D0

text

#080711

muted

#7A7A80

Preview Lab

Preview with #153A8F

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

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