#005A8D
Closest named color: Deep Sea Blue (#015482). oklch(45% 0.11 243.6), rgb(0, 90, 141).
Aa
White text reads best on this color (7.37:1).
About this color
#005A8D is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.110 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.023 away. White text reads best on it, at 7.37:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.84:1 |
| White text | 7.37:1 |
Values
| HEX | #005A8D |
| RGB | rgb(0, 90, 141) |
| HSL | hsl(202, 100%, 28%) |
| OKLCH | oklch(45% 0.11 243.6) |
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 #005A8D | 7.37:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #005A8D | 2.84:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #005A8D text on white | 7.37:1 | AAA | Lc 85.0 | Fine for body text |
| #005A8D text on black | 2.84:1 | Fails | Lc -17.0 | Dividers and decoration only |
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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF6
oklch(93.7% 0.019 243)
-
Step 200
200
#C6DCEF
oklch(88.4% 0.035 244.2)
-
Step 300
300
#9DC6E8
oklch(80.9% 0.065 243.7)
-
Step 400
400
#65A8DC
oklch(70.8% 0.103 243.4)
-
Step 500
500
#3291D2
oklch(63.2% 0.131 243.1)
-
Step 600
600
#007ABC
oklch(55.7% 0.136 243.3)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800 (this color)
#005A8D
oklch(45% 0.11 243.6)
-
Step 900
900
#0B456B
oklch(37.6% 0.086 243.9)
-
Step 950
950
#0A293F
oklch(27.1% 0.054 243.5)
#005A8D 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) | #415C8F | 0.047 |
| Deuteranopia (no green cones) | #2E518C | 0.033 |
| Tritanopia (no blue cones) | #00676D | 0.075 |
| Achromatopsia (no color) | #565656 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005A8D
#005A8D
oklch(45% 0.11 243.6)
- #7C4600
#7C4600
oklch(44.9% 0.103 62.9)
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 #005A8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.023
- Dusk Blue #26538D ΔE 0.025
- Light Navy Blue #2E5A88 ΔE 0.026
- Light Navy #155084 ΔE 0.030
- Peacock Blue #016795 ΔE 0.039
- Denim Blue #3B5B92 ΔE 0.041
- Denim #3B638C ΔE 0.050
- Cobalt #1E488F ΔE 0.052
Use #005A8D 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.