#244F8B
Closest named color: Dusk Blue (#26538D). oklch(43% 0.11 257.3), rgb(36, 79, 139).
Aa
White text reads best on this color (8.18:1).
About this color
#244F8B is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.110 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.012 away. White text reads best on it, at 8.18:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.56:1 |
| White text | 8.18:1 |
Values
| HEX | #244F8B |
| RGB | rgb(36, 79, 139) |
| HSL | hsl(215, 59%, 34%) |
| OKLCH | oklch(43% 0.11 257.3) |
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 #244F8B | 8.18:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #244F8B | 2.56:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #244F8B text on white | 8.18:1 | AAA | Lc 88.0 | Fine for body text |
| #244F8B text on black | 2.56:1 | Fails | Lc -14.2 | 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
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CBDAF1
oklch(88.4% 0.036 258.9)
-
Step 300
300
#A7C3EB
oklch(81% 0.064 257.3)
-
Step 400
400
#77A2E1
oklch(70.6% 0.104 257.8)
-
Step 500
500
#538AD8
oklch(63.1% 0.132 257.3)
-
Step 600
600
#3772C5
oklch(55.5% 0.143 257.4)
-
Step 700
700
#295FAB
oklch(49% 0.134 257.6)
-
Step 800
800 (this color)
#244F8B
oklch(43% 0.11 257.3)
-
Step 900
900
#22426E
oklch(37.8% 0.085 256.8)
-
Step 950
950
#142741
oklch(27.1% 0.055 256.6)
#244F8B 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) | #32548D | 0.022 |
| Deuteranopia (no green cones) | #214B8A | 0.012 |
| Tritanopia (no blue cones) | #005D66 | 0.086 |
| Achromatopsia (no color) | #4F4F4F | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #244F8B
#244F8B
oklch(43% 0.11 257.3)
- #6B4800
#6B4800
oklch(43% 0.09 77)
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 #244F8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.012
- Light Navy #155084 ΔE 0.017
- Cobalt #1E488F ΔE 0.023
- Deep Sea Blue #015482 ΔE 0.029
- Light Navy Blue #2E5A88 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.046
- Twilight Blue #0A437A ΔE 0.050
- Twilight #4E518B ΔE 0.053
Use #244F8B 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.