#28497A
Closest named color: Light Navy (#155084). oklch(40.6% 0.092 258.2), rgb(40, 73, 122).
Aa
White text reads best on this color (9.03:1).
About this color
#28497A is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.092 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.026 away. White text reads best on it, at 9.03:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.32:1 |
| White text | 9.03:1 |
Values
| HEX | #28497A |
| RGB | rgb(40, 73, 122) |
| HSL | hsl(216, 51%, 32%) |
| OKLCH | oklch(40.6% 0.092 258.2) |
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 #28497A | 9.03:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #28497A | 2.32:1 | Fails | Lc 13.4 | Not readable |
| #28497A text on white | 9.03:1 | AAA | Lc 90.6 | Preferred for body text |
| #28497A text on black | 2.32:1 | Fails | Lc -11.8 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CDDAED
oklch(88.4% 0.03 257.8)
-
Step 300
300
#ACC2E4
oklch(80.9% 0.054 259)
-
Step 400
400
#7FA2D6
oklch(70.6% 0.086 258.1)
-
Step 500
500
#5F8ACB
oklch(63% 0.11 258.4)
-
Step 600
600
#4573B8
oklch(55.5% 0.119 258.3)
-
Step 700
700
#37609E
oklch(49% 0.11 258.5)
-
Step 800
800 (this color)
#28497A
oklch(40.6% 0.092 258.2)
-
Step 900
900
#294267
oklch(37.7% 0.071 258)
-
Step 950
950
#18273C
oklch(27% 0.044 256.9)
#28497A 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) | #334D7C | 0.019 |
| Deuteranopia (no green cones) | #284579 | 0.012 |
| Tritanopia (no blue cones) | #00545B | 0.075 |
| Achromatopsia (no color) | #494949 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28497A
#28497A
oklch(40.6% 0.092 258.2)
- #624200
#624200
oklch(40.5% 0.085 77.5)
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 #28497A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.026
- Twilight Blue #0A437A ΔE 0.032
- Deep Sea Blue #015482 ΔE 0.036
- Cobalt #1E488F ΔE 0.036
- Dusk Blue #26538D ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.054
- Dark Slate Blue #483D8B ΔE 0.062
Use #28497A 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.