#28415E
Closest named color: Dark Grey Blue (#29465B). oklch(36.9% 0.059 253), rgb(40, 65, 94).
Aa
White text reads best on this color (10.45:1).
About this color
#28415E is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.059 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.019 away. White text reads best on it, at 10.45:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.00:1 |
| White text | 10.45:1 |
Values
| HEX | #28415E |
| RGB | rgb(40, 65, 94) |
| HSL | hsl(212, 40%, 26%) |
| OKLCH | oklch(36.9% 0.059 253) |
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 #28415E | 10.45:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #28415E | 2.00:1 | Fails | Lc 9.8 | Not readable |
| #28415E text on white | 10.45:1 | AAA | Lc 94.2 | Preferred for body text |
| #28415E text on black | 2.00:1 | Fails | Lc -8.4 | 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
#CEDAE9
oklch(88.4% 0.024 254)
-
Step 300
300
#ADC3DD
oklch(80.9% 0.044 252.7)
-
Step 400
400
#81A4CC
oklch(70.7% 0.07 252.1)
-
Step 500
500
#618CBF
oklch(63% 0.091 253.3)
-
Step 600
600
#4776AC
oklch(55.7% 0.099 253)
-
Step 700
700
#386393
oklch(49.1% 0.091 252.5)
-
Step 800
800
#2F5177
oklch(42.7% 0.075 252.4)
-
Step 900
900 (this color)
#28415E
oklch(36.9% 0.059 253)
-
Step 950
950
#192738
oklch(26.9% 0.037 253.8)
#28415E 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) | #35425F | 0.018 |
| Deuteranopia (no green cones) | #2E3D5D | 0.014 |
| Tritanopia (no blue cones) | #08484B | 0.053 |
| Achromatopsia (no color) | #3F3F3F | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28415E
#28415E
oklch(36.9% 0.059 253)
- #523A19
#523A19
oklch(36.8% 0.059 72.9)
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 #28415E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.019
- Charcoal #264653 ΔE 0.029
- Dark Blue Grey #1F3B4D ΔE 0.035
- Prussian Blue #1D3557 ΔE 0.043
- Midnight Green #073B4C ΔE 0.049
- Twilight Blue #0A437A ΔE 0.051
- Marine Blue #01386A ΔE 0.052
- Onyx #343A40 ΔE 0.052
Use #28415E 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.