#0050A0
Closest named color: Cobalt (#1E488F). oklch(43.9% 0.146 255.3), rgb(0, 80, 160).
Aa
White text reads best on this color (7.90:1).
About this color
#0050A0 is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.146 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.034 away. White text reads best on it, at 7.90:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.65:1 |
| White text | 7.90:1 |
Values
| HEX | #0050A0 |
| RGB | rgb(0, 80, 160) |
| HSL | hsl(210, 100%, 31%) |
| OKLCH | oklch(43.9% 0.146 255.3) |
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 #0050A0 | 7.90:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #0050A0 | 2.65:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #0050A0 text on white | 7.90:1 | AAA | Lc 86.7 | Fine for body text |
| #0050A0 text on black | 2.65:1 | Fails | Lc -15.4 | 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 800.
-
Step 50
50
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C5DBF9
oklch(88.5% 0.048 256.2)
-
Step 300
300
#9CC4F7
oklch(81% 0.084 254.7)
-
Step 400
400
#63A3F4
oklch(70.8% 0.137 255.1)
-
Step 500
500
#3389F0
oklch(63.2% 0.175 255.3)
-
Step 600
600
#0070DC
oklch(55.6% 0.186 255.4)
-
Step 700
700
#005EBA
oklch(49.1% 0.163 255.3)
-
Step 800
800 (this color)
#0050A0
oklch(43.9% 0.146 255.3)
-
Step 900
900
#0C417C
oklch(37.8% 0.113 255)
-
Step 950
950
#0A2649
oklch(26.9% 0.073 255.8)
#0050A0 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) | #1D58A3 | 0.028 |
| Deuteranopia (no green cones) | #004B9E | 0.014 |
| Tritanopia (no blue cones) | #006470 | 0.110 |
| Achromatopsia (no color) | #515151 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0050A0
#0050A0
oklch(43.9% 0.146 255.3)
- #6F4A00
#6F4A00
oklch(43.9% 0.092 76.1)
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 #0050A0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.034
- Dusk Blue #26538D ΔE 0.038
- Light Navy #155084 ΔE 0.046
- Deep Sea Blue #015482 ΔE 0.053
- Light Navy Blue #2E5A88 ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.061
- Sapphire #2138AB ΔE 0.061
- Blueberry #464196 ΔE 0.066
Use #0050A0 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.