#287777
Closest named color: Bluegreen (#017A79). oklch(52.2% 0.075 195.1), rgb(40, 119, 119).
Aa
White text reads best on this color (5.25:1).
About this color
#287777 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.075 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.015 away. White text reads best on it, at 5.25:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 3.99:1 |
| White text | 5.25:1 |
Values
| HEX | #287777 |
| RGB | rgb(40, 119, 119) |
| HSL | hsl(180, 50%, 31%) |
| OKLCH | oklch(52.2% 0.075 195.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #287777 | 5.25:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #287777 | 3.99:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #287777 text on white | 5.25:1 | AA | Lc 75.8 | Fine for body text |
| #287777 text on black | 3.99:1 | AA large text | Lc -25.9 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDEDD
oklch(88.6% 0.02 193)
-
Step 300
300
#A6C8C8
oklch(80.8% 0.036 196.5)
-
Step 400
400
#75ACAC
oklch(70.6% 0.058 195.9)
-
Step 500
500
#4D9897
oklch(63.2% 0.075 194.3)
-
Step 600
600
#2B8282
oklch(55.6% 0.081 195.1)
-
Step 700
700 (this color)
#287777
oklch(52.2% 0.075 195.1)
-
Step 800
800
#1B5A5A
oklch(42.9% 0.062 195.1)
-
Step 900
900
#1D4A4A
oklch(37.8% 0.049 195.3)
-
Step 950
950
#132B2B
oklch(27% 0.03 195.5)
#287777 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #6F7177 | 0.078 |
| Deuteranopia (no green cones) | #636878 | 0.074 |
| Tritanopia (no blue cones) | #007B77 | 0.017 |
| Achromatopsia (no color) | #6C6C6C | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #287777
#287777
oklch(52.2% 0.075 195.1)
- #90575B
#90575B
oklch(52.2% 0.076 15.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #287777, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.015
- Deep Aqua #08787F ΔE 0.016
- Deep Turquoise #017374 ΔE 0.022
- Dark Aquamarine #017371 ΔE 0.023
- Teal #008080 ΔE 0.027
- Ocean #017B92 ΔE 0.041
- Dark Aqua #05696B ΔE 0.050
- Sea Blue #047495 ΔE 0.053
Use #287777 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.