#005BA9
Closest named color: Dusk Blue (#26538D). oklch(47.1% 0.145 252.9), rgb(0, 91, 169).
Aa
White text reads best on this color (6.84:1).
About this color
#005BA9 is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.145 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.048 away. White text reads best on it, at 6.84:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 3.06:1 |
| White text | 6.84:1 |
Values
| HEX | #005BA9 |
| RGB | rgb(0, 91, 169) |
| HSL | hsl(208, 100%, 33%) |
| OKLCH | oklch(47.1% 0.145 252.9) |
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 #005BA9 | 6.84:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #005BA9 | 3.06:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #005BA9 text on white | 6.84:1 | AA | Lc 82.9 | Fine for body text |
| #005BA9 text on black | 3.06:1 | AA large text | Lc -19.0 | 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 700.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF3
oklch(88.5% 0.039 254.3)
-
Step 300
300
#A1C4ED
oklch(80.9% 0.069 252.7)
-
Step 400
400
#6CA4E5
oklch(70.7% 0.113 253)
-
Step 500
500
#428CDD
oklch(63.1% 0.143 252.8)
-
Step 600
600
#1D74CB
oklch(55.6% 0.156 253)
-
Step 700
700 (this color)
#005BA9
oklch(47.1% 0.145 252.9)
-
Step 800
800
#104F8E
oklch(42.6% 0.12 253.1)
-
Step 900
900
#174371
oklch(37.8% 0.092 252.4)
-
Step 950
950
#0F2742
oklch(26.9% 0.059 253.1)
#005BA9 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) | #2F62AC | 0.034 |
| Deuteranopia (no green cones) | #0054A7 | 0.020 |
| Tritanopia (no blue cones) | #006E79 | 0.107 |
| Achromatopsia (no color) | #5B5B5B | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005BA9
#005BA9
oklch(47.1% 0.145 252.9)
- #7D5100
#7D5100
oklch(47.3% 0.101 73.2)
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 #005BA9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.048
- Mid Blue #276AB3 ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.050
- Peacock Blue #016795 ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.056
- Dusky Blue #475F94 ΔE 0.063
- Cobalt #1E488F ΔE 0.063
- Light Navy #155084 ΔE 0.064
Use #005BA9 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.