#488CDE
Closest named color: Dark Sky Blue (#448EE4). oklch(63.4% 0.142 254.5), rgb(72, 140, 222).
Aa
Black text reads best on this color (6.08:1).
About this color
#488CDE is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.142 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.010 away. Black text reads best on it, at 6.08:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.08:1 |
| White text | 3.45:1 |
Values
| HEX | #488CDE |
| RGB | rgb(72, 140, 222) |
| HSL | hsl(213, 69%, 58%) |
| OKLCH | oklch(63.4% 0.142 254.5) |
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 #488CDE | 3.45:1 | AA large text | Lc -67.2 | Content text, not long reading |
| Black text on #488CDE | 6.08:1 | AA | Lc 42.3 | Non-text elements, placeholder text |
| #488CDE text on white | 3.45:1 | AA large text | Lc 61.8 | Content text, not long reading |
| #488CDE text on black | 6.08:1 | AA | Lc -39.9 | 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
#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
#A2C3ED
oklch(80.8% 0.07 254.6)
-
Step 400
400
#6FA3E5
oklch(70.6% 0.112 254.9)
-
Step 500
500 (this color)
#488CDE
oklch(63.4% 0.142 254.5)
-
Step 600
600
#2673CB
oklch(55.6% 0.155 254.7)
-
Step 700
700
#1760AF
oklch(49% 0.143 254.4)
-
Step 800
800
#174F8E
oklch(42.7% 0.119 254.5)
-
Step 900
900
#1A4271
oklch(37.7% 0.092 254.4)
-
Step 950
950
#102742
oklch(27% 0.058 253.9)
#488CDE 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) | #6792E1 | 0.037 |
| Deuteranopia (no green cones) | #5184DC | 0.021 |
| Tritanopia (no blue cones) | #009FAA | 0.112 |
| Achromatopsia (no color) | #8A8A8A | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #488CDE
#488CDE
oklch(63.4% 0.142 254.5)
- #B97C00
#B97C00
oklch(63.3% 0.134 74.6)
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 #488CDE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.010
- Chefchaouen Blue #4895EF ΔE 0.032
- Soft Blue #6488EA ΔE 0.035
- Cornflower Blue #6495ED ΔE 0.044
- Water Blue #0E87CC ΔE 0.046
- Dodger Blue #1E90FF ΔE 0.051
- Cool Blue #4984B8 ΔE 0.058
- Faded Blue #658CBB ΔE 0.059
Use #488CDE 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.