#40839B#40839B

#40839B is a mid, moderate cyan. Relative luminance 0.197; OKLCH L 57.6% C 0.077 H 224.1°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#40839B
RGB	rgb(64, 131, 155)
HSL	hsl(196, 42%, 43%)
HSV	hsv(196, 59%, 61%)
CMYK	cmyk(58.7%, 15.5%, 0%, 39.2%)
CIE-LAB	lab(51.48, -13.96, -19.28)
CIE-LCH	lch(51.48, 23.80, 234.08°)
OKLab	oklab(57.61% -0.0554 -0.0536)
OKLCH	oklch(57.61% 0.077 224.1)
XYZ	xyz(16.1447, 19.6876, 33.9533)
Luminance	0.1969 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40839B #9B5840

analogous

#409B85 #40839B #40559B

triadic

#40839B #9B4083 #839B40

tetradic

#40839B #85409B #9B5840 #559B40

square

#40839B #85409B #9B5840 #559B40

split-complementary

#40839B #9B4055 #9B8540

monochromatic

#1C3A44 #2E5E70 #40839B #5CA3BC #88BBCE

Accessibility & contrast

On white

4.25

#40839B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#40839B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #40839B

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40839B	#FFFFFF	#000000	##000000
##40839B	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#76809C

Deuteranopia (green-blind)

#68769B

Tritanopia (blue-blind)

#008A8B

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #40839b;
/* rgb */ color: rgb(64, 131, 155);
/* oklch */ color: oklch(57.6% 0.077 224.1);

Tailwind

colors: {
  custom: {
    50: '#7da7b8',
    500: '#40839b',
    950: '#000000',
  },
}

SCSS

$custom: #40839b;
$custom-light: #7da7b8;
$custom-dark: #000000;

JSON

{
  "hex": "#40839b",
  "rgb": {
    "r": 64,
    "g": 131,
    "b": 155
  },
  "hsl": {
    "h": 195.824,
    "s": 41.553,
    "l": 42.941
  },
  "oklch": {
    "l": 0.57608,
    "c": 0.07706,
    "h": 224.1
  },
  "luminance": 0.19689
}

Semantic roles & 50–950 ramp

primary

#40839B

secondary

#B88E7E

accent

#7756D1

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0A0F11

muted

#7C7F80

Preview Lab

Preview with #40839B

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

Preview Lab → · Contrast checker → · Palette generator →