#285698
Closest named color: Dusk Blue (#26538D). oklch(45.6% 0.119 257.8), rgb(40, 86, 152).
Aa
White text reads best on this color (7.30:1).
About this color
#285698 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.119 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.019 away. White text reads best on it, at 7.30:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.87:1 |
| White text | 7.30:1 |
Values
| HEX | #285698 |
| RGB | rgb(40, 86, 152) |
| HSL | hsl(215, 58%, 38%) |
| OKLCH | oklch(45.6% 0.119 257.8) |
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 #285698 | 7.30:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #285698 | 2.87:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #285698 text on white | 7.30:1 | AAA | Lc 85.1 | Fine for body text |
| #285698 text on black | 2.87:1 | Fails | Lc -17.0 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EBF8
oklch(93.7% 0.02 257.5)
-
Step 200
200
#CADBF3
oklch(88.6% 0.038 257)
-
Step 300
300
#A5C3EE
oklch(81% 0.069 257.4)
-
Step 400
400
#74A2E6
oklch(70.7% 0.112 258)
-
Step 500
500
#4F89DE
oklch(63.1% 0.142 257.9)
-
Step 600
600
#3271CC
oklch(55.6% 0.155 258)
-
Step 700
700
#245EB0
oklch(49% 0.144 257.9)
-
Step 800
800 (this color)
#285698
oklch(45.6% 0.119 257.8)
-
Step 900
900
#1F4172
oklch(37.7% 0.093 257.8)
-
Step 950
950
#132643
oklch(26.9% 0.06 258.6)
#285698 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) | #365C9B | 0.024 |
| Deuteranopia (no green cones) | #225297 | 0.013 |
| Tritanopia (no blue cones) | #00656F | 0.093 |
| Achromatopsia (no color) | #565656 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #285698
#285698
oklch(45.6% 0.119 257.8)
- #744F00
#744F00
oklch(45.7% 0.095 77.7)
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 #285698, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.019
- Denim Blue #3B5B92 ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.031
- Light Navy #155084 ΔE 0.040
- Cobalt #1E488F ΔE 0.043
- Deep Sea Blue #015482 ΔE 0.044
- Dusky Blue #475F94 ΔE 0.047
- Twilight #4E518B ΔE 0.048
Use #285698 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.