#285C71
Closest named color: Petrol (#005F6A). oklch(44.9% 0.065 227.4), rgb(40, 92, 113).
Aa
White text reads best on this color (7.34:1).
About this color
#285C71 is a dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.065 and its hue 227°. 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 7.34:1.
| Hue family | Teals and cyans |
| Lightness | dark (45%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.85:1 |
| White text | 7.34:1 |
Values
| HEX | #285C71 |
| RGB | rgb(40, 92, 113) |
| HSL | hsl(197, 48%, 30%) |
| OKLCH | oklch(44.9% 0.065 227.4) |
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 #285C71 | 7.34:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #285C71 | 2.85:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #285C71 text on white | 7.34:1 | AAA | Lc 85.3 | Fine for body text |
| #285C71 text on black | 2.85:1 | Fails | Lc -16.7 | 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
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CBDCE4
oklch(88.4% 0.021 227.6)
-
Step 300
300
#A8C6D4
oklch(80.9% 0.038 227.7)
-
Step 400
400
#78A9BE
oklch(70.8% 0.06 226.5)
-
Step 500
500
#5393AE
oklch(63.1% 0.077 227.3)
-
Step 600
600
#347D9A
oklch(55.6% 0.084 227.5)
-
Step 700
700
#266983
oklch(49% 0.078 227.5)
-
Step 800
800 (this color)
#285C71
oklch(44.9% 0.065 227.4)
-
Step 900
900
#214757
oklch(37.7% 0.051 227.9)
-
Step 950
950
#142A33
oklch(27.1% 0.033 226.5)
#285C71 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) | #515A72 | 0.048 |
| Deuteranopia (no green cones) | #475371 | 0.042 |
| Tritanopia (no blue cones) | #006263 | 0.040 |
| Achromatopsia (no color) | #565656 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285C71
#285C71
oklch(44.9% 0.065 227.4)
- #734935
#734935
oklch(44.8% 0.066 46.1)
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 #285C71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.026
- YInMn Blue #415A77 ΔE 0.030
- Light Navy Blue #2E5A88 ΔE 0.042
- Dark Aqua #05696B ΔE 0.047
- Deep Sea Blue #015482 ΔE 0.048
- Deep Teal #00555A ΔE 0.050
- Denim #3B638C ΔE 0.052
- Dusty Grape #545775 ΔE 0.055
Use #285C71 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.