#28497C
Closest named color: Light Navy (#155084). oklch(40.7% 0.094 258.8), rgb(40, 73, 124).
Aa
White text reads best on this color (8.99:1).
About this color
#28497C is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.094 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.024 away. White text reads best on it, at 8.99:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.33:1 |
| White text | 8.99:1 |
Values
| HEX | #28497C |
| RGB | rgb(40, 73, 124) |
| HSL | hsl(216, 51%, 32%) |
| OKLCH | oklch(40.7% 0.094 258.8) |
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 #28497C | 8.99:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #28497C | 2.33:1 | Fails | Lc 13.5 | Not readable |
| #28497C text on white | 8.99:1 | AAA | Lc 90.4 | Preferred for body text |
| #28497C text on black | 2.33:1 | Fails | Lc -11.9 | 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 800.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CDDAEE
oklch(88.5% 0.031 258.9)
-
Step 300
300
#ABC2E5
oklch(80.9% 0.056 258.7)
-
Step 400
400
#7FA2D8
oklch(70.7% 0.089 258.9)
-
Step 500
500
#5E8ACD
oklch(63.1% 0.113 258.6)
-
Step 600
600
#4573BA
oklch(55.7% 0.122 258.8)
-
Step 700
700
#3660A0
oklch(49.1% 0.113 258.6)
-
Step 800
800 (this color)
#28497C
oklch(40.7% 0.094 258.8)
-
Step 900
900
#294268
oklch(37.8% 0.072 258.5)
-
Step 950
950
#18273D
oklch(27.1% 0.046 257.8)
#28497C 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) | #324D7E | 0.018 |
| Deuteranopia (no green cones) | #26457B | 0.012 |
| Tritanopia (no blue cones) | #00555C | 0.078 |
| Achromatopsia (no color) | #494949 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28497C
#28497C
oklch(40.7% 0.094 258.8)
- #624300
#624300
oklch(40.7% 0.085 78.8)
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 #28497C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.024
- Twilight Blue #0A437A ΔE 0.032
- Cobalt #1E488F ΔE 0.033
- Deep Sea Blue #015482 ΔE 0.035
- Dusk Blue #26538D ΔE 0.037
- Light Navy Blue #2E5A88 ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.060
Use #28497C 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.