#005D9B
Closest named color: Peacock Blue (#016795). oklch(46.6% 0.124 247.6), rgb(0, 93, 155).
Aa
White text reads best on this color (6.91:1).
About this color
#005D9B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.124 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.033 away. White text reads best on it, at 6.91:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.03:1 |
| White text | 6.91:1 |
Values
| HEX | #005D9B |
| RGB | rgb(0, 93, 155) |
| HSL | hsl(204, 100%, 30%) |
| OKLCH | oklch(46.6% 0.124 247.6) |
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 #005D9B | 6.91:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #005D9B | 3.03:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #005D9B text on white | 6.91:1 | AA | Lc 83.3 | Fine for body text |
| #005D9B text on black | 3.03:1 | AA large text | Lc -18.7 | 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 700.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCEF
oklch(88.5% 0.034 246.8)
-
Step 300
300
#A2C5E6
oklch(80.9% 0.06 247)
-
Step 400
400
#6EA6DA
oklch(70.7% 0.097 247.6)
-
Step 500
500
#448FD0
oklch(63.2% 0.123 247.4)
-
Step 600
600
#1F78BD
oklch(55.7% 0.134 247.4)
-
Step 700
700 (this color)
#005D9B
oklch(46.6% 0.124 247.6)
-
Step 800
800
#125284
oklch(42.7% 0.103 247.6)
-
Step 900
900
#18446A
oklch(37.6% 0.081 248)
-
Step 950
950
#10283E
oklch(27% 0.051 248.4)
#005D9B 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) | #3E619E | 0.044 |
| Deuteranopia (no green cones) | #26549A | 0.028 |
| Tritanopia (no blue cones) | #006C74 | 0.088 |
| Achromatopsia (no color) | #5A5A5A | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005D9B
#005D9B
oklch(46.6% 0.124 247.6)
- #7F4D00
#7F4D00
oklch(46.7% 0.103 67.9)
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 #005D9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.033
- Dusk Blue #26538D ΔE 0.034
- Light Navy Blue #2E5A88 ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.038
- Deep Sea Blue #015482 ΔE 0.046
- Light Navy #155084 ΔE 0.048
- Denim #3B638C ΔE 0.050
- Dusky Blue #475F94 ΔE 0.053
Use #005D9B 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.