#153C7D#153C7D

#153C7D is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.9% C 0.119 H 260.1°. Best body text is #FFFFFF at 10.64:1 contrast (WCAG AA passes).

Color values

HEX	#153C7D
RGB	rgb(21, 60, 125)
HSL	hsl(218, 71%, 29%)
HSV	hsv(218, 83%, 49%)
CMYK	cmyk(83.2%, 52%, 0%, 51%)
CIE-LAB	lab(26.36, 12.25, -40.73)
CIE-LCH	lch(26.36, 42.53, 286.74°)
OKLab	oklab(36.92% -0.0204 -0.1172)
OKLCH	oklch(36.92% 0.119 260.1)
XYZ	xyz(5.6254, 4.8711, 20.0418)
Luminance	0.0487 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C7D #7D5615

analogous

#15707D #153C7D #22157D

triadic

#153C7D #7D153C #3C7D15

tetradic

#153C7D #7D1570 #7D5615 #157D22

square

#153C7D #7D1570 #7D5615 #157D22

split-complementary

#153C7D #7D2215 #707D15

monochromatic

#040D1A #0C2349 #153C7D #1E55B1 #3071DC

Accessibility & contrast

On white

10.64

#153C7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#153C7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C7D

10.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C7D	#FFFFFF	#000000	##FFFFFF
##153C7D	1.00	10.64	1.97	10.64
#FFFFFF	10.64	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13437F

Deuteranopia (green-blind)

#003A7C

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #153c7d;
/* rgb */ color: rgb(21, 60, 125);
/* oklch */ color: oklch(36.9% 0.119 260.1);

Tailwind

colors: {
  custom: {
    50: '#6571a3',
    500: '#153c7d',
    950: '#000000',
  },
}

SCSS

$custom: #153c7d;
$custom-light: #6571a3;
$custom-dark: #000000;

JSON

{
  "hex": "#153c7d",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 125
  },
  "hsl": {
    "h": 217.5,
    "s": 71.233,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36921,
    "c": 0.11899,
    "h": 260.1
  },
  "luminance": 0.04872
}

Semantic roles & 50–950 ramp

primary

#153C7D

secondary

#B2863C

accent

#AA3AEE

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #153C7D

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

Preview Lab → · Contrast checker → · Palette generator →