#285C5E
Closest named color: Petrol (#005F6A). oklch(44% 0.055 198.7), rgb(40, 92, 94).
Aa
White text reads best on this color (7.54:1).
About this color
#285C5E is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.055 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.024 away. White text reads best on it, at 7.54:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.78:1 |
| White text | 7.54:1 |
Values
| HEX | #285C5E |
| RGB | rgb(40, 92, 94) |
| HSL | hsl(182, 40%, 26%) |
| OKLCH | oklch(44% 0.055 198.7) |
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 #285C5E | 7.54:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #285C5E | 2.78:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #285C5E text on white | 7.54:1 | AAA | Lc 86.1 | Fine for body text |
| #285C5E text on black | 2.78:1 | Fails | Lc -16.0 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CCDDDD
oklch(88.5% 0.018 196.8)
-
Step 300
300
#A9C7C8
oklch(80.8% 0.032 199)
-
Step 400
400
#7AABAD
oklch(70.7% 0.052 199.2)
-
Step 500
500
#569698
oklch(63.1% 0.066 198.2)
-
Step 600
600
#388083
oklch(55.6% 0.072 199)
-
Step 700
700
#296C6F
oklch(49% 0.067 199.3)
-
Step 800
800 (this color)
#285C5E
oklch(44% 0.055 198.7)
-
Step 900
900
#23494A
oklch(37.8% 0.043 197.7)
-
Step 950
950
#152B2B
oklch(27.1% 0.028 195.6)
#285C5E 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) | #56585E | 0.057 |
| Deuteranopia (no green cones) | #4D515E | 0.053 |
| Tritanopia (no blue cones) | #005F5C | 0.022 |
| Achromatopsia (no color) | #545454 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285C5E
#285C5E
oklch(44% 0.055 198.7)
- #6E4647
#6E4647
oklch(44% 0.055 17.9)
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 #285C5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.024
- Dark Green Blue #1F6357 ΔE 0.029
- Deep Teal #00555A ΔE 0.035
- Dark Aqua #05696B ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.041
- Dark Blue Green #005249 ΔE 0.052
- YInMn Blue #415A77 ΔE 0.054
- Dark Teal #014D4E ΔE 0.060
Use #285C5E 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.