#08388A
Closest named color: Twilight Blue (#0A437A). oklch(36.8% 0.145 260.9), rgb(8, 56, 138).
Aa
White text reads best on this color (10.80:1).
About this color
#08388A is a dark, vivid blue. In OKLCH its lightness is 37%, its chroma 0.145 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.043 away. White text reads best on it, at 10.80:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 1.94:1 |
| White text | 10.80:1 |
Values
| HEX | #08388A |
| RGB | rgb(8, 56, 138) |
| HSL | hsl(218, 89%, 29%) |
| OKLCH | oklch(36.8% 0.145 260.9) |
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 #08388A | 10.80:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #08388A | 1.94:1 | Fails | Lc 9.6 | Not readable |
| #08388A text on white | 10.80:1 | AAA | Lc 94.3 | Preferred for body text |
| #08388A text on black | 1.94:1 | Fails | Lc -8.2 | 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 900.
-
Step 50
50
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEBFF
oklch(93.7% 0.03 260.7)
-
Step 200
200
#C5DAFF
oklch(88.5% 0.056 261.8)
-
Step 300
300
#9EC2FF
oklch(81% 0.095 260.8)
-
Step 400
400
#689FFF
oklch(70.7% 0.153 260.8)
-
Step 500
500
#3D83FF
oklch(63.2% 0.198 260.8)
-
Step 600
600
#0064FB
oklch(55.6% 0.238 260.9)
-
Step 700
700
#0053D5
oklch(49% 0.211 261)
-
Step 800
800
#0044B1
oklch(42.8% 0.184 260.9)
-
Step 900
900 (this color)
#08388A
oklch(36.8% 0.145 260.9)
-
Step 950
950
#092352
oklch(26.9% 0.092 261.1)
#08388A 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) | #00438D | 0.029 |
| Deuteranopia (no green cones) | #003888 | 0.005 |
| Tritanopia (no blue cones) | #004D5B | 0.111 |
| Achromatopsia (no color) | #3D3D3D | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #08388A
#08388A
oklch(36.8% 0.145 260.9)
- #543A00
#543A00
oklch(36.9% 0.076 80.3)
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 #08388A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.043
- Cobalt #1E488F ΔE 0.050
- Marine Blue #01386A ΔE 0.055
- Sapphire #2138AB ΔE 0.058
- Royal #0C1793 ΔE 0.067
- Light Navy #155084 ΔE 0.072
- Marine #042E60 ΔE 0.077
- Dark Slate Blue #483D8B ΔE 0.077
Use #08388A 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.