#005AB4
Closest named color: Mid Blue (#276AB3). oklch(47.7% 0.16 255.6), rgb(0, 90, 180).
Aa
White text reads best on this color (6.72:1).
About this color
#005AB4 is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.160 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.051 away. White text reads best on it, at 6.72:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.160) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.12:1 |
| White text | 6.72:1 |
Values
| HEX | #005AB4 |
| RGB | rgb(0, 90, 180) |
| HSL | hsl(210, 100%, 35%) |
| OKLCH | oklch(47.7% 0.16 255.6) |
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 #005AB4 | 6.72:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #005AB4 | 3.12:1 | AA large text | Lc 21.6 | Dividers and decoration only |
| #005AB4 text on white | 6.72:1 | AA | Lc 82.4 | Fine for body text |
| #005AB4 text on black | 3.12:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C7DBF6
oklch(88.5% 0.043 255.9)
-
Step 300
300
#A0C3F3
oklch(80.9% 0.078 256.4)
-
Step 400
400
#6AA3ED
oklch(70.7% 0.125 255.5)
-
Step 500
500
#3F8AE7
oklch(63.2% 0.159 255.4)
-
Step 600
600
#1971D5
oklch(55.6% 0.173 255.6)
-
Step 700
700 (this color)
#005AB4
oklch(47.7% 0.16 255.6)
-
Step 800
800
#0E4D95
oklch(42.6% 0.133 255.7)
-
Step 900
900
#154177
oklch(37.7% 0.104 255.6)
-
Step 950
950
#0E2746
oklch(27.1% 0.066 255.2)
#005AB4 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) | #2063B7 | 0.030 |
| Deuteranopia (no green cones) | #0055B2 | 0.014 |
| Tritanopia (no blue cones) | #00707E | 0.120 |
| Achromatopsia (no color) | #5C5C5C | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005AB4
#005AB4
oklch(47.7% 0.16 255.6)
- #7D5300
#7D5300
oklch(47.7% 0.1 75.2)
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 #005AB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.051
- Dusk Blue #26538D ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.064
- Blue Blue #2242C7 ΔE 0.064
- Peacock Blue #016795 ΔE 0.067
- French Blue #436BAD ΔE 0.071
- Cobalt #1E488F ΔE 0.072
- Light Navy Blue #2E5A88 ΔE 0.073
Use #005AB4 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.