#153C8C#153C8C

#153C8C is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.2% C 0.140 H 262.4°. Best body text is #FFFFFF at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#153C8C
RGB	rgb(21, 60, 140)
HSL	hsl(220, 74%, 32%)
HSV	hsv(220, 85%, 55%)
CMYK	cmyk(85%, 57.1%, 0%, 45.1%)
CIE-LAB	lab(27.53, 18.48, -48.19)
CIE-LCH	lch(27.53, 51.61, 290.98°)
OKLab	oklab(38.17% -0.0187 -0.1392)
OKLCH	oklch(38.17% 0.14 262.4)
XYZ	xyz(6.6570, 5.2838, 25.4749)
Luminance	0.0529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C8C #8C6515

analogous

#15788C #153C8C #2A158C

triadic

#153C8C #8C153C #3C8C15

tetradic

#153C8C #8C1578 #8C6515 #158C2A

square

#153C8C #8C1578 #8C6515 #158C2A

split-complementary

#153C8C #8C2A15 #788C15

monochromatic

#050E22 #0D2557 #153C8C #1D53C1 #3A71E1

Accessibility & contrast

On white

10.21

#153C8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#153C8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C8C

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C8C	#FFFFFF	#000000	##FFFFFF
##153C8C	1.00	10.21	2.06	10.21
#FFFFFF	10.21	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478F

Deuteranopia (green-blind)

#003C8A

Tritanopia (blue-blind)

#00505E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #153c8c;
/* rgb */ color: rgb(21, 60, 140);
/* oklch */ color: oklch(38.2% 0.140 262.4);

Tailwind

colors: {
  custom: {
    50: '#6971ae',
    500: '#153c8c',
    950: '#000000',
  },
}

SCSS

$custom: #153c8c;
$custom-light: #6971ae;
$custom-dark: #000000;

JSON

{
  "hex": "#153c8c",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 140
  },
  "hsl": {
    "h": 220.336,
    "s": 73.913,
    "l": 31.569
  },
  "oklch": {
    "l": 0.38174,
    "c": 0.14043,
    "h": 262.4
  },
  "luminance": 0.05285
}

Semantic roles & 50–950 ramp

primary

#153C8C

secondary

#C0953D

accent

#B437F1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #153C8C

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

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