#153C7E#153C7E

#153C7E is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.0% C 0.120 H 260.3°. Best body text is #FFFFFF at 10.61:1 contrast (WCAG AA passes).

Color values

HEX	#153C7E
RGB	rgb(21, 60, 126)
HSL	hsl(218, 71%, 29%)
HSV	hsv(218, 83%, 49%)
CMYK	cmyk(83.3%, 52.4%, 0%, 50.6%)
CIE-LAB	lab(26.44, 12.67, -41.23)
CIE-LCH	lch(26.44, 43.14, 287.08°)
OKLab	oklab(37% -0.0202 -0.1187)
OKLCH	oklch(37% 0.12 260.3)
XYZ	xyz(5.6896, 4.8968, 20.3799)
Luminance	0.0490 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C7E #7E5715

analogous

#15717E #153C7E #22157E

triadic

#153C7E #7E153C #3C7E15

tetradic

#153C7E #7E1571 #7E5715 #157E22

square

#153C7E #7E1571 #7E5715 #157E22

split-complementary

#153C7E #7E2215 #717E15

monochromatic

#040C1A #0C234A #153C7E #1E55B2 #3171DD

Accessibility & contrast

On white

10.61

#153C7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#153C7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C7E

10.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C7E	#FFFFFF	#000000	##FFFFFF
##153C7E	1.00	10.61	1.98	10.61
#FFFFFF	10.61	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#124480

Deuteranopia (green-blind)

#003A7D

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #153c7e;
/* rgb */ color: rgb(21, 60, 126);
/* oklch */ color: oklch(37.0% 0.120 260.3);

Tailwind

colors: {
  custom: {
    50: '#6571a4',
    500: '#153c7e',
    950: '#000000',
  },
}

SCSS

$custom: #153c7e;
$custom-light: #6571a4;
$custom-dark: #000000;

JSON

{
  "hex": "#153c7e",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 126
  },
  "hsl": {
    "h": 217.714,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.37001,
    "c": 0.12043,
    "h": 260.3
  },
  "luminance": 0.04898
}

Semantic roles & 50–950 ramp

primary

#153C7E

secondary

#B3873C

accent

#AB3AEE

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #153C7E

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

Preview Lab → · Contrast checker → · Palette generator →