#285F4F
Closest named color: Dark Green Blue (#1F6357). oklch(44.3% 0.064 171.6), rgb(40, 95, 79).
Aa
White text reads best on this color (7.39:1).
About this color
#285F4F is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.064 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.015 away. White text reads best on it, at 7.39:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.84:1 |
| White text | 7.39:1 |
Values
| HEX | #285F4F |
| RGB | rgb(40, 95, 79) |
| HSL | hsl(163, 41%, 26%) |
| OKLCH | oklch(44.3% 0.064 171.6) |
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 #285F4F | 7.39:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #285F4F | 2.84:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #285F4F text on white | 7.39:1 | AAA | Lc 85.5 | Fine for body text |
| #285F4F text on black | 2.84:1 | Fails | Lc -16.5 | 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 800.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CCDED7
oklch(88.5% 0.021 170.6)
-
Step 300
300
#A9C9BE
oklch(80.9% 0.038 172.5)
-
Step 400
400
#7AAD9C
oklch(70.7% 0.06 171.8)
-
Step 500
500
#559984
oklch(63.2% 0.077 171.7)
-
Step 600
600
#36836D
oklch(55.5% 0.084 171.6)
-
Step 700
700
#286F5B
oklch(49.1% 0.078 171.3)
-
Step 800
800 (this color)
#285F4F
oklch(44.3% 0.064 171.6)
-
Step 900
900
#224A3E
oklch(37.6% 0.05 171.7)
-
Step 950
950
#152C24
oklch(27.1% 0.033 169.4)
#285F4F 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) | #5C594E | 0.066 |
| Deuteranopia (no green cones) | #545350 | 0.064 |
| Tritanopia (no blue cones) | #0D605A | 0.021 |
| Achromatopsia (no color) | #565656 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285F4F
#285F4F
oklch(44.3% 0.064 171.6)
- #6F4457
#6F4457
oklch(44.3% 0.065 352)
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 #285F4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.015
- Pine #2B5D34 ΔE 0.039
- Spruce #0A5F38 ΔE 0.043
- Dark Aqua #05696B ΔE 0.046
- Petrol #005F6A ΔE 0.046
- Deep Teal #00555A ΔE 0.049
- Dark Blue Green #005249 ΔE 0.052
- Dark Slate Gray #2F4F4F ΔE 0.053
Use #285F4F 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.