#277EAD#277EAD

#277EAD is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.4% C 0.108 H 237.3°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#277EAD
RGB	rgb(39, 126, 173)
HSL	hsl(201, 63%, 42%)
HSV	hsv(201, 77%, 68%)
CMYK	cmyk(77.5%, 27.2%, 0%, 32.2%)
CIE-LAB	lab(49.94, -9.08, -32.17)
CIE-LCH	lch(49.94, 33.43, 254.23°)
OKLab	oklab(56.41% -0.0583 -0.0909)
OKLCH	oklch(56.41% 0.108 237.3)
XYZ	xyz(15.8374, 18.3683, 42.2378)
Luminance	0.1837 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277EAD #AD5627

analogous

#27AD99 #277EAD #273BAD

triadic

#277EAD #AD277E #7EAD27

tetradic

#277EAD #9927AD #AD5627 #3BAD27

square

#277EAD #9927AD #AD5627 #3BAD27

split-complementary

#277EAD #AD273B #AD9927

monochromatic

#103549 #1C5A7B #277EAD #3E9FD3 #70B8DF

Accessibility & contrast

On white

4.49

#277EAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.67

#277EAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277EAD

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277EAD	#FFFFFF	#000000	##000000
##277EAD	1.00	4.49	4.67	4.67
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#687EAF

Deuteranopia (green-blind)

#5571AC

Tritanopia (blue-blind)

#008A8E

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #277ead;
/* rgb */ color: rgb(39, 126, 173);
/* oklch */ color: oklch(56.4% 0.108 237.3);

Tailwind

colors: {
  custom: {
    50: '#75a3c5',
    500: '#277ead',
    950: '#000000',
  },
}

SCSS

$custom: #277ead;
$custom-light: #75a3c5;
$custom-dark: #000000;

JSON

{
  "hex": "#277ead",
  "rgb": {
    "r": 39,
    "g": 126,
    "b": 173
  },
  "hsl": {
    "h": 201.045,
    "s": 63.208,
    "l": 41.569
  },
  "oklch": {
    "l": 0.56414,
    "c": 0.10796,
    "h": 237.3
  },
  "luminance": 0.1837
}

Semantic roles & 50–950 ramp

primary

#277EAD

secondary

#C68A6A

accent

#7B42E6

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #277EAD

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

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