#285678
Closest named color: Deep Sea Blue (#015482). oklch(43.7% 0.076 243.1), rgb(40, 86, 120).
Aa
White text reads best on this color (7.79:1).
About this color
#285678 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.076 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.028 away. White text reads best on it, at 7.79:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.69:1 |
| White text | 7.79:1 |
Values
| HEX | #285678 |
| RGB | rgb(40, 86, 120) |
| HSL | hsl(206, 50%, 31%) |
| OKLCH | oklch(43.7% 0.076 243.1) |
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 #285678 | 7.79:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #285678 | 2.69:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #285678 text on white | 7.79:1 | AAA | Lc 86.9 | Fine for body text |
| #285678 text on black | 2.69:1 | Fails | Lc -15.2 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE8
oklch(88.4% 0.024 244.2)
-
Step 300
300
#A9C5DB
oklch(81% 0.043 241.8)
-
Step 400
400
#7AA6CA
oklch(70.7% 0.071 243.7)
-
Step 500
500
#5690BC
oklch(63.2% 0.09 242.7)
-
Step 600
600
#3979A8
oklch(55.5% 0.098 243.1)
-
Step 700
700
#2B6690
oklch(49.1% 0.091 242.8)
-
Step 800
800 (this color)
#285678
oklch(43.7% 0.076 243.1)
-
Step 900
900
#23455E
oklch(37.7% 0.059 242.4)
-
Step 950
950
#152937
oklch(27.1% 0.037 240.5)
#285678 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) | #47577A | 0.037 |
| Deuteranopia (no green cones) | #3C4F77 | 0.028 |
| Tritanopia (no blue cones) | #005E62 | 0.055 |
| Achromatopsia (no color) | #525252 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285678
#285678
oklch(43.7% 0.076 243.1)
- #6F4821
#6F4821
oklch(43.8% 0.076 63.4)
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 #285678, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.028
- YInMn Blue #415A77 ΔE 0.032
- Light Navy #155084 ΔE 0.034
- Dusk Blue #26538D ΔE 0.038
- Petrol #005F6A ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.050
- Dusk #4E5481 ΔE 0.050
Use #285678 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.