#005B8D
Closest named color: Light Navy Blue (#2E5A88). oklch(45.2% 0.109 242.8), rgb(0, 91, 141).
Aa
White text reads best on this color (7.28:1).
About this color
#005B8D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.109 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.025 away. White text reads best on it, at 7.28:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.88:1 |
| White text | 7.28:1 |
Values
| HEX | #005B8D |
| RGB | rgb(0, 91, 141) |
| HSL | hsl(201, 100%, 28%) |
| OKLCH | oklch(45.2% 0.109 242.8) |
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 #005B8D | 7.28:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #005B8D | 2.88:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #005B8D text on white | 7.28:1 | AAA | Lc 84.7 | Fine for body text |
| #005B8D text on black | 2.88:1 | Fails | Lc -17.3 | 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
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C6DDEF
oklch(88.6% 0.035 241.5)
-
Step 300
300
#9DC6E7
oklch(80.8% 0.064 242.9)
-
Step 400
400
#65A8DB
oklch(70.7% 0.102 242.8)
-
Step 500
500
#3191D1
oklch(63.1% 0.13 242.6)
-
Step 600
600
#007ABB
oklch(55.7% 0.134 242.9)
-
Step 700
700
#00669E
oklch(49% 0.119 243.2)
-
Step 800
800 (this color)
#005B8D
oklch(45.2% 0.109 242.8)
-
Step 900
900
#0A466B
oklch(37.8% 0.085 242.6)
-
Step 950
950
#0A293E
oklch(27% 0.053 242.3)
#005B8D 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) | #435D8F | 0.049 |
| Deuteranopia (no green cones) | #30518C | 0.036 |
| Tritanopia (no blue cones) | #00676D | 0.073 |
| Achromatopsia (no color) | #565656 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005B8D
#005B8D
oklch(45.2% 0.109 242.8)
- #7D4700
#7D4700
oklch(45.3% 0.103 63.3)
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 #005B8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.025
- Deep Sea Blue #015482 ΔE 0.026
- Dusk Blue #26538D ΔE 0.027
- Light Navy #155084 ΔE 0.033
- Peacock Blue #016795 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.040
- Denim #3B638C ΔE 0.048
- YInMn Blue #415A77 ΔE 0.055
Use #005B8D 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.