#0488D5
Closest named color: Water Blue (#0E87CC). oklch(60.5% 0.151 244.9), rgb(4, 136, 213).
Aa
Black text reads best on this color (5.48:1).
About this color
#0488D5 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.151 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.014 away. Black text reads best on it, at 5.48:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.48:1 |
| White text | 3.82:1 |
Values
| HEX | #0488D5 |
| RGB | rgb(4, 136, 213) |
| HSL | hsl(202, 96%, 43%) |
| OKLCH | oklch(60.5% 0.151 244.9) |
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 #0488D5 | 3.82:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #0488D5 | 5.48:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #0488D5 text on white | 3.82:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #0488D5 text on black | 5.48:1 | AA | Lc -36.6 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DFECF8
oklch(93.7% 0.021 245.9)
-
Step 200
200
#C3DDF3
oklch(88.5% 0.041 243.7)
-
Step 300
300
#99C6EE
oklch(80.9% 0.074 245.7)
-
Step 400
400
#5BA8E5
oklch(70.8% 0.118 244.5)
-
Step 500
500 (this color)
#0488D5
oklch(60.5% 0.151 244.9)
-
Step 600
600
#0079BF
oklch(55.7% 0.14 245)
-
Step 700
700
#0065A1
oklch(49% 0.124 245.1)
-
Step 800
800
#005385
oklch(42.7% 0.107 244.8)
-
Step 900
900
#004570
oklch(37.7% 0.095 244.9)
-
Step 950
950
#042943
oklch(27.1% 0.063 244.6)
#0488D5 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) | #628BD8 | 0.060 |
| Deuteranopia (no green cones) | #467BD4 | 0.043 |
| Tritanopia (no blue cones) | #009BA4 | 0.105 |
| Achromatopsia (no color) | #828282 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0488D5
#0488D5
oklch(60.5% 0.151 244.9)
- #B86D00
#B86D00
oklch(60.4% 0.136 64.6)
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 #0488D5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.014
- Dark Sky Blue #448EE4 ΔE 0.042
- Windows Blue #3778BF ΔE 0.050
- Cool Blue #4984B8 ΔE 0.051
- Steel Blue #4682B4 ΔE 0.055
- Blue NCS #118AB2 ΔE 0.056
- Chefchaouen Blue #4895EF ΔE 0.063
- Nice Blue #107AB0 ΔE 0.063
Use #0488D5 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.