#005F9F
Closest named color: Peacock Blue (#016795). oklch(47.4% 0.127 247.9), rgb(0, 95, 159).
Aa
White text reads best on this color (6.69:1).
About this color
#005F9F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.127 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.032 away. White text reads best on it, at 6.69:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.13:1 |
| White text | 6.69:1 |
Values
| HEX | #005F9F |
| RGB | rgb(0, 95, 159) |
| HSL | hsl(204, 100%, 31%) |
| OKLCH | oklch(47.4% 0.127 247.9) |
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 #005F9F | 6.69:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #005F9F | 3.13:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #005F9F text on white | 6.69:1 | AA | Lc 82.4 | Fine for body text |
| #005F9F text on black | 3.13:1 | AA large text | Lc -19.5 | 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
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C8DCEF
oklch(88.5% 0.034 246.8)
-
Step 300
300
#A2C5E7
oklch(80.9% 0.061 247.8)
-
Step 400
400
#6DA6DB
oklch(70.7% 0.098 247.6)
-
Step 500
500
#438FD1
oklch(63.2% 0.125 247.5)
-
Step 600
600
#1C77BF
oklch(55.5% 0.138 248.2)
-
Step 700
700 (this color)
#005F9F
oklch(47.4% 0.127 247.9)
-
Step 800
800
#105285
oklch(42.7% 0.105 247.7)
-
Step 900
900
#17446B
oklch(37.7% 0.083 248.3)
-
Step 950
950
#0F283E
oklch(26.9% 0.052 247.6)
#005F9F 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) | #3F63A2 | 0.044 |
| Deuteranopia (no green cones) | #26569E | 0.028 |
| Tritanopia (no blue cones) | #006F77 | 0.091 |
| Achromatopsia (no color) | #5C5C5C | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005F9F
#005F9F
oklch(47.4% 0.127 247.9)
- #824F00
#824F00
oklch(47.5% 0.104 68)
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 #005F9F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.032
- Denim Blue #3B5B92 ΔE 0.039
- Light Navy Blue #2E5A88 ΔE 0.041
- Dusk Blue #26538D ΔE 0.041
- Mid Blue #276AB3 ΔE 0.048
- Denim #3B638C ΔE 0.049
- Dusky Blue #475F94 ΔE 0.051
- Deep Sea Blue #015482 ΔE 0.054
Use #005F9F 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.