#28476F
Closest named color: Twilight Blue (#0A437A). oklch(39.4% 0.078 255.5), rgb(40, 71, 111).
Aa
White text reads best on this color (9.45:1).
About this color
#28476F is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.078 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.034 away. White text reads best on it, at 9.45:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.22:1 |
| White text | 9.45:1 |
Values
| HEX | #28476F |
| RGB | rgb(40, 71, 111) |
| HSL | hsl(214, 47%, 30%) |
| OKLCH | oklch(39.4% 0.078 255.5) |
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 #28476F | 9.45:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #28476F | 2.22:1 | Fails | Lc 12.3 | Not readable |
| #28476F text on white | 9.45:1 | AAA | Lc 91.7 | Preferred for body text |
| #28476F text on black | 2.22:1 | Fails | Lc -10.7 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EBF5
oklch(93.7% 0.016 253.9)
-
Step 200
200
#CBDBEF
oklch(88.6% 0.033 254)
-
Step 300
300
#A8C3E6
oklch(80.9% 0.058 255)
-
Step 400
400
#79A3DA
oklch(70.7% 0.093 255.4)
-
Step 500
500
#568BD0
oklch(63% 0.119 255.6)
-
Step 600
600
#3A74BD
oklch(55.6% 0.129 255.4)
-
Step 700
700
#2C61A3
oklch(49.1% 0.12 255.3)
-
Step 800
800
#264F84
oklch(42.6% 0.1 255.8)
-
Step 900
900 (this color)
#28476F
oklch(39.4% 0.078 255.5)
-
Step 950
950
#15273E
oklch(27% 0.049 255.2)
#28476F 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) | #364A71 | 0.021 |
| Deuteranopia (no green cones) | #2D436E | 0.012 |
| Tritanopia (no blue cones) | #005056 | 0.064 |
| Achromatopsia (no color) | #464646 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28476F
#28476F
oklch(39.4% 0.078 255.5)
- #5E3F09
#5E3F09
oklch(39.4% 0.078 75.1)
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 #28476F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.034
- Dark Grey Blue #29465B ΔE 0.034
- Light Navy #155084 ΔE 0.040
- Deep Sea Blue #015482 ΔE 0.046
- Charcoal #264653 ΔE 0.049
- Cobalt #1E488F ΔE 0.054
- Dusk Blue #26538D ΔE 0.056
- Marine Blue #01386A ΔE 0.060
Use #28476F 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.