#153C75#153C75

#153C75 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.3% C 0.107 H 258.3°. Best body text is #FFFFFF at 10.85:1 contrast (WCAG AA passes).

Color values

HEX	#153C75
RGB	rgb(21, 60, 117)
HSL	hsl(216, 70%, 27%)
HSV	hsv(216, 82%, 46%)
CMYK	cmyk(82.1%, 48.7%, 0%, 54.1%)
CIE-LAB	lab(25.79, 8.90, -36.60)
CIE-LCH	lch(25.79, 37.67, 283.66°)
OKLab	oklab(36.29% -0.0217 -0.1051)
OKLCH	oklch(36.29% 0.107 258.3)
XYZ	xyz(5.1348, 4.6749, 17.4579)
Luminance	0.0468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C75 #754E15

analogous

#156C75 #153C75 #1E1575

triadic

#153C75 #75153C #3C7515

tetradic

#153C75 #75156C #754E15 #15751E

square

#153C75 #75156C #754E15 #15751E

split-complementary

#153C75 #751E15 #6C7515

monochromatic

#050D1A #0C2141 #153C75 #1E57A9 #2B72D9

Accessibility & contrast

On white

10.85

#153C75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#153C75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C75

10.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C75	#FFFFFF	#000000	##FFFFFF
##153C75	1.00	10.85	1.94	10.85
#FFFFFF	10.85	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4277

Deuteranopia (green-blind)

#043974

Tritanopia (blue-blind)

#004A52

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #153c75;
/* rgb */ color: rgb(21, 60, 117);
/* oklch */ color: oklch(36.3% 0.107 258.3);

Tailwind

colors: {
  custom: {
    50: '#63719d',
    500: '#153c75',
    950: '#000000',
  },
}

SCSS

$custom: #153c75;
$custom-light: #63719d;
$custom-dark: #000000;

JSON

{
  "hex": "#153c75",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 117
  },
  "hsl": {
    "h": 215.625,
    "s": 69.565,
    "l": 27.059
  },
  "oklch": {
    "l": 0.36293,
    "c": 0.10732,
    "h": 258.3
  },
  "luminance": 0.04676
}

Semantic roles & 50–950 ramp

primary

#153C75

secondary

#AB7D3B

accent

#A43BEC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #153C75

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

Preview Lab → · Contrast checker → · Palette generator →