#285659
Closest named color: Deep Teal (#00555A). oklch(42.2% 0.05 201.1), rgb(40, 86, 89).
Aa
White text reads best on this color (8.18:1).
About this color
#285659 is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.050 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.023 away. White text reads best on it, at 8.18:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.56:1 |
| White text | 8.18:1 |
Values
| HEX | #285659 |
| RGB | rgb(40, 86, 89) |
| HSL | hsl(184, 38%, 25%) |
| OKLCH | oklch(42.2% 0.05 201.1) |
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 #285659 | 8.18:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #285659 | 2.56:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #285659 text on white | 8.18:1 | AAA | Lc 88.2 | Fine for body text |
| #285659 text on black | 2.56:1 | Fails | Lc -14.0 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEC
oklch(93.7% 0.009 197)
-
Step 200
200
#CDDDDD
oklch(88.6% 0.017 196.8)
-
Step 300
300
#ABC7C8
oklch(80.9% 0.03 199.2)
-
Step 400
400
#7EAAAD
oklch(70.7% 0.047 201.4)
-
Step 500
500
#5B9598
oklch(63.1% 0.061 200)
-
Step 600
600
#3F7F83
oklch(55.6% 0.066 200.8)
-
Step 700
700
#316B6F
oklch(49.1% 0.061 201.4)
-
Step 800
800 (this color)
#285659
oklch(42.2% 0.05 201.1)
-
Step 900
900
#26484A
oklch(37.7% 0.04 200.5)
-
Step 950
950
#172A2B
oklch(26.9% 0.025 200)
#285659 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) | #505359 | 0.051 |
| Deuteranopia (no green cones) | #484D59 | 0.046 |
| Tritanopia (no blue cones) | #055957 | 0.022 |
| Achromatopsia (no color) | #4F4F4F | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285659
#285659
oklch(42.2% 0.05 201.1)
- #674342
#674342
oklch(42.4% 0.05 21.2)
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 #285659, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.023
- Dark Slate Gray #2F4F4F ΔE 0.023
- Petrol #005F6A ΔE 0.035
- Dark Blue Green #005249 ΔE 0.040
- Dark Green Blue #1F6357 ΔE 0.044
- Dark Teal #014D4E ΔE 0.044
- Charcoal #264653 ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.054
Use #285659 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.