#287C87
Closest named color: Ocean (#017B92). oklch(54.2% 0.08 207.5), rgb(40, 124, 135).
Aa
White text reads best on this color (4.85:1).
About this color
#287C87 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.080 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.022 away. White text reads best on it, at 4.85:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.32:1 |
| White text | 4.85:1 |
Values
| HEX | #287C87 |
| RGB | rgb(40, 124, 135) |
| HSL | hsl(187, 54%, 34%) |
| OKLCH | oklch(54.2% 0.08 207.5) |
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 #287C87 | 4.85:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #287C87 | 4.32:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #287C87 text on white | 4.85:1 | AA | Lc 73.4 | Content text, not long reading |
| #287C87 text on black | 4.32:1 | AA large text | Lc -28.3 | 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 600.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CBDDE0
oklch(88.5% 0.02 208.8)
-
Step 300
300
#A7C8CD
oklch(81% 0.036 207.7)
-
Step 400
400
#76ABB3
oklch(70.7% 0.057 207.8)
-
Step 500
500
#4E96A0
oklch(63% 0.074 207.3)
-
Step 600
600 (this color)
#287C87
oklch(54.2% 0.08 207.5)
-
Step 700
700
#1E6C76
oklch(49% 0.074 207.5)
-
Step 800
800
#1C5860
oklch(42.6% 0.061 207.6)
-
Step 900
900
#1E494F
oklch(37.8% 0.048 207.6)
-
Step 950
950
#132B2E
oklch(27.1% 0.03 206.1)
#287C87 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) | #717788 | 0.077 |
| Deuteranopia (no green cones) | #636D87 | 0.070 |
| Tritanopia (no blue cones) | #00827F | 0.028 |
| Achromatopsia (no color) | #717171 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #287C87
#287C87
oklch(54.2% 0.08 207.5)
- #985D55
#985D55
oklch(54.2% 0.079 28.3)
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 #287C87, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.022
- Deep Aqua #08787F ΔE 0.022
- Teal #008080 ΔE 0.023
- Bluegreen #017A79 ΔE 0.028
- Sea Blue #047495 ΔE 0.041
- Deep Turquoise #017374 ΔE 0.042
- Teal Blue #01889F ΔE 0.043
- Dark Cyan #008B8B ΔE 0.044
Use #287C87 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.