#285A6E
Closest named color: Petrol (#005F6A). oklch(44.2% 0.063 227), rgb(40, 90, 110).
Aa
White text reads best on this color (7.55:1).
About this color
#285A6E is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.063 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 7.55:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.77:1 |
| White text | 7.55:1 |
Values
| HEX | #285A6E |
| RGB | rgb(40, 90, 110) |
| HSL | hsl(197, 47%, 29%) |
| OKLCH | oklch(44.2% 0.063 227) |
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 #285A6E | 7.55:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #285A6E | 2.77:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #285A6E text on white | 7.55:1 | AAA | Lc 86.1 | Fine for body text |
| #285A6E text on black | 2.77:1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CCDCE4
oklch(88.5% 0.02 229.1)
-
Step 300
300
#A9C6D3
oklch(80.9% 0.036 226.7)
-
Step 400
400
#79A9BD
oklch(70.8% 0.059 225.7)
-
Step 500
500
#5593AD
oklch(63.2% 0.075 227)
-
Step 600
600
#377D98
oklch(55.6% 0.081 226.4)
-
Step 700
700
#296982
oklch(49.1% 0.076 227.3)
-
Step 800
800 (this color)
#285A6E
oklch(44.2% 0.063 227)
-
Step 900
900
#234756
oklch(37.8% 0.049 227.3)
-
Step 950
950
#152A32
oklch(27.1% 0.031 224.6)
#285A6E 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) | #4F586F | 0.046 |
| Deuteranopia (no green cones) | #45516E | 0.041 |
| Tritanopia (no blue cones) | #006060 | 0.040 |
| Achromatopsia (no color) | #545454 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285A6E
#285A6E
oklch(44.2% 0.063 227)
- #704834
#704834
oklch(44.2% 0.063 47.2)
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 #285A6E, 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 0.032
- Deep Teal #00555A ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.047
- Dark Aqua #05696B ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.053
- Dark Green Blue #1F6357 ΔE 0.056
Use #285A6E 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.