#24477F
Closest named color: Twilight Blue (#0A437A). oklch(40.3% 0.103 259.4), rgb(36, 71, 127).
Aa
White text reads best on this color (9.19:1).
About this color
#24477F is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.103 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.025 away. White text reads best on it, at 9.19:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.28:1 |
| White text | 9.19:1 |
Values
| HEX | #24477F |
| RGB | rgb(36, 71, 127) |
| HSL | hsl(217, 56%, 32%) |
| OKLCH | oklch(40.3% 0.103 259.4) |
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 #24477F | 9.19:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #24477F | 2.28:1 | Fails | Lc 13.0 | Not readable |
| #24477F text on white | 9.19:1 | AAA | Lc 90.9 | Preferred for body text |
| #24477F text on black | 2.28:1 | Fails | Lc -11.4 | 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 800.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF6
oklch(93.5% 0.018 261.3)
-
Step 200
200
#CCDAF0
oklch(88.5% 0.034 259.4)
-
Step 300
300
#AAC2E8
oklch(80.9% 0.06 259.5)
-
Step 400
400
#7DA2DD
oklch(70.8% 0.096 259.5)
-
Step 500
500
#5B89D3
oklch(63% 0.123 259.5)
-
Step 600
600
#4172C0
oklch(55.6% 0.133 259.3)
-
Step 700
700
#335FA6
oklch(49.1% 0.124 259.5)
-
Step 800
800 (this color)
#24477F
oklch(40.3% 0.103 259.4)
-
Step 900
900
#27416C
oklch(37.7% 0.081 260)
-
Step 950
950
#17263F
oklch(26.9% 0.051 260.2)
#24477F 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) | #2C4C81 | 0.018 |
| Deuteranopia (no green cones) | #1D447E | 0.012 |
| Tritanopia (no blue cones) | #00545C | 0.083 |
| Achromatopsia (no color) | #484848 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #24477F
#24477F
oklch(40.3% 0.103 259.4)
- #604200
#604200
oklch(40.2% 0.084 79.3)
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 #24477F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.025
- Cobalt #1E488F ΔE 0.027
- Light Navy #155084 ΔE 0.027
- Deep Sea Blue #015482 ΔE 0.039
- Dusk Blue #26538D ΔE 0.040
- Dark Slate Blue #483D8B ΔE 0.058
- Light Navy Blue #2E5A88 ΔE 0.059
- Dark Grey Blue #29465B ΔE 0.061
Use #24477F 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.