#28425F
Closest named color: Dark Grey Blue (#29465B). oklch(37.2% 0.06 252.1), rgb(40, 66, 95).
Aa
White text reads best on this color (10.32:1).
About this color
#28425F is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.060 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.017 away. White text reads best on it, at 10.32:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.03:1 |
| White text | 10.32:1 |
Values
| HEX | #28425F |
| RGB | rgb(40, 66, 95) |
| HSL | hsl(212, 41%, 26%) |
| OKLCH | oklch(37.2% 0.06 252.1) |
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 #28425F | 10.32:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #28425F | 2.03:1 | Fails | Lc 10.1 | Not readable |
| #28425F text on white | 10.32:1 | AAA | Lc 93.9 | Preferred for body text |
| #28425F text on black | 2.03:1 | Fails | Lc -8.7 | Not readable |
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 900.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDBEA
oklch(88.6% 0.025 251.9)
-
Step 300
300
#ACC3DD
oklch(80.8% 0.045 251.6)
-
Step 400
400
#80A4CC
oklch(70.7% 0.071 251.5)
-
Step 500
500
#608DBF
oklch(63.1% 0.091 251.9)
-
Step 600
600
#4676AC
oklch(55.6% 0.1 252.6)
-
Step 700
700
#376393
oklch(49.1% 0.092 252)
-
Step 800
800
#2E5178
oklch(42.7% 0.077 252.4)
-
Step 900
900 (this color)
#28425F
oklch(37.2% 0.06 252.1)
-
Step 950
950
#192838
oklch(27.1% 0.036 250.8)
#28425F 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) | #364360 | 0.019 |
| Deuteranopia (no green cones) | #2F3E5E | 0.014 |
| Tritanopia (no blue cones) | #07494C | 0.053 |
| Achromatopsia (no color) | #404040 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28425F
#28425F
oklch(37.2% 0.06 252.1)
- #543B19
#543B19
oklch(37.3% 0.06 72.4)
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 #28425F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.017
- Charcoal #264653 ΔE 0.028
- Dark Blue Grey #1F3B4D ΔE 0.038
- Prussian Blue #1D3557 ΔE 0.046
- Twilight Blue #0A437A ΔE 0.050
- Midnight Green #073B4C ΔE 0.051
- Marine Blue #01386A ΔE 0.053
- Onyx #343A40 ΔE 0.054
Use #28425F 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.