#285F73
Closest named color: Petrol (#005F6A). oklch(45.8% 0.066 225), rgb(40, 95, 115).
Aa
White text reads best on this color (7.05:1).
About this color
#285F73 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.066 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.027 away. White text reads best on it, at 7.05:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.97:1 |
| White text | 7.05:1 |
Values
| HEX | #285F73 |
| RGB | rgb(40, 95, 115) |
| HSL | hsl(196, 48%, 30%) |
| OKLCH | oklch(45.8% 0.066 225) |
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 #285F73 | 7.05:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #285F73 | 2.97:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #285F73 text on white | 7.05:1 | AAA | Lc 84.3 | Fine for body text |
| #285F73 text on black | 2.97:1 | Fails | Lc -17.7 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CBDCE4
oklch(88.4% 0.021 227.6)
-
Step 300
300
#A7C6D4
oklch(80.8% 0.039 226.9)
-
Step 400
400
#76A9BE
oklch(70.6% 0.062 225.6)
-
Step 500
500
#5094AD
oklch(63.2% 0.078 224.2)
-
Step 600
600
#307E99
oklch(55.7% 0.086 224.6)
-
Step 700
700
#226A83
oklch(49.2% 0.08 225.3)
-
Step 800
800 (this color)
#285F73
oklch(45.8% 0.066 225)
-
Step 900
900
#1F4756
oklch(37.6% 0.052 225.3)
-
Step 950
950
#132A32
oklch(27% 0.033 222.8)
#285F73 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) | #545D74 | 0.051 |
| Deuteranopia (no green cones) | #495573 | 0.045 |
| Tritanopia (no blue cones) | #006565 | 0.039 |
| Achromatopsia (no color) | #585858 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285F73
#285F73
oklch(45.8% 0.066 225)
- #764B38
#764B38
oklch(45.7% 0.066 44.5)
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 #285F73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.027
- YInMn Blue #415A77 ΔE 0.031
- Dark Aqua #05696B ΔE 0.040
- Light Navy Blue #2E5A88 ΔE 0.043
- Denim #3B638C ΔE 0.047
- Slate #516572 ΔE 0.052
- Deep Sea Blue #015482 ΔE 0.053
- Dark Green Blue #1F6357 ΔE 0.053
Use #285F73 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.