#005FB4
Closest named color: Mid Blue (#276AB3). oklch(48.9% 0.154 253.8), rgb(0, 95, 180).
Aa
White text reads best on this color (6.37:1).
About this color
#005FB4 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.154 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.038 away. White text reads best on it, at 6.37:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.29:1 |
| White text | 6.37:1 |
Values
| HEX | #005FB4 |
| RGB | rgb(0, 95, 180) |
| HSL | hsl(208, 100%, 35%) |
| OKLCH | oklch(48.9% 0.154 253.8) |
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 #005FB4 | 6.37:1 | AA | Lc -86.1 | Fine for body text |
| Black text on #005FB4 | 3.29:1 | AA large text | Lc 23.1 | Dividers and decoration only |
| #005FB4 text on white | 6.37:1 | AA | Lc 80.9 | Fine for body text |
| #005FB4 text on black | 3.29:1 | AA large text | Lc -20.9 | 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
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C7DBF5
oklch(88.5% 0.042 255)
-
Step 300
300
#9FC4F1
oklch(80.9% 0.075 253.6)
-
Step 400
400
#6AA4E9
oklch(70.8% 0.119 253.6)
-
Step 500
500
#3E8BE3
oklch(63.1% 0.153 253.9)
-
Step 600
600
#1573D1
oklch(55.7% 0.166 253.8)
-
Step 700
700 (this color)
#005FB4
oklch(48.9% 0.154 253.8)
-
Step 800
800
#0A4F92
oklch(42.8% 0.127 253.4)
-
Step 900
900
#144275
oklch(37.7% 0.1 253.9)
-
Step 950
950
#0D2744
oklch(27% 0.063 253.3)
#005FB4 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) | #2E67B7 | 0.034 |
| Deuteranopia (no green cones) | #0058B2 | 0.019 |
| Tritanopia (no blue cones) | #007481 | 0.114 |
| Achromatopsia (no color) | #5F5F5F | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005FB4
#005FB4
oklch(48.9% 0.154 253.8)
- #825500
#825500
oklch(48.7% 0.103 73.8)
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 #005FB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.038
- Peacock Blue #016795 ΔE 0.059
- French Blue #436BAD ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.061
- Dusk Blue #26538D ΔE 0.066
- Dusky Blue #475F94 ΔE 0.068
- Ocean Blue #03719C ΔE 0.071
- Light Navy Blue #2E5A88 ΔE 0.071
Use #005FB4 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.