#285863
Closest named color: Petrol (#005F6A). oklch(43.2% 0.055 214.8), rgb(40, 88, 99).
Aa
White text reads best on this color (7.87:1).
About this color
#285863 is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.055 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.026 away. White text reads best on it, at 7.87:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.66:1 |
| White text | 7.87:1 |
Values
| HEX | #285863 |
| RGB | rgb(40, 88, 99) |
| HSL | hsl(191, 42%, 27%) |
| OKLCH | oklch(43.2% 0.055 214.8) |
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 #285863 | 7.87:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #285863 | 2.66:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #285863 text on white | 7.87:1 | AAA | Lc 87.2 | Fine for body text |
| #285863 text on black | 2.66:1 | Fails | Lc -14.9 | Not readable |
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 800.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECEE
oklch(93.7% 0.01 212.5)
-
Step 200
200
#CDDCE0
oklch(88.4% 0.017 215.5)
-
Step 300
300
#AAC6CE
oklch(80.8% 0.032 216.9)
-
Step 400
400
#7CA9B5
oklch(70.7% 0.051 216)
-
Step 500
500
#5894A2
oklch(63.1% 0.066 214.3)
-
Step 600
600
#3B7E8D
oklch(55.6% 0.071 214.4)
-
Step 700
700
#2D6A78
oklch(49% 0.066 215.2)
-
Step 800
800 (this color)
#285863
oklch(43.2% 0.055 214.8)
-
Step 900
900
#254750
oklch(37.6% 0.042 216.9)
-
Step 950
950
#162A2F
oklch(27% 0.027 215.5)
#285863 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) | #505564 | 0.050 |
| Deuteranopia (no green cones) | #474F63 | 0.044 |
| Tritanopia (no blue cones) | #005C5B | 0.030 |
| Achromatopsia (no color) | #515151 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285863
#285863
oklch(43.2% 0.055 214.8)
- #6B453C
#6B453C
oklch(43.1% 0.055 33.9)
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 #285863, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.026
- Deep Teal #00555A ΔE 0.030
- Dark Slate Gray #2F4F4F ΔE 0.037
- YInMn Blue #415A77 ΔE 0.046
- Dark Green Blue #1F6357 ΔE 0.047
- Dark Aqua #05696B ΔE 0.052
- Dark Blue Green #005249 ΔE 0.054
- Dark Teal #014D4E ΔE 0.055
Use #285863 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.