#308AC2
Closest named color: Water Blue (#0E87CC). oklch(60.6% 0.119 240.6), rgb(48, 138, 194).
Aa
Black text reads best on this color (5.54:1).
About this color
#308AC2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.119 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.023 away. Black text reads best on it, at 5.54:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.54:1 |
| White text | 3.79:1 |
Values
| HEX | #308AC2 |
| RGB | rgb(48, 138, 194) |
| HSL | hsl(203, 60%, 47%) |
| OKLCH | oklch(60.6% 0.119 240.6) |
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 #308AC2 | 3.79:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #308AC2 | 5.54:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #308AC2 text on white | 3.79:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #308AC2 text on black | 5.54:1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C7DCED
oklch(88.4% 0.033 242.4)
-
Step 300
300
#9FC6E3
oklch(80.8% 0.058 240.6)
-
Step 400
400
#68A8D5
oklch(70.6% 0.093 240.5)
-
Step 500
500 (this color)
#308AC2
oklch(60.6% 0.119 240.6)
-
Step 600
600
#007BB7
oklch(55.7% 0.129 240.7)
-
Step 700
700
#00679A
oklch(49.1% 0.113 240.5)
-
Step 800
800
#00547F
oklch(42.6% 0.099 240.7)
-
Step 900
900
#104667
oklch(37.7% 0.078 241)
-
Step 950
950
#0C293C
oklch(26.9% 0.049 240.9)
#308AC2 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) | #708BC5 | 0.061 |
| Deuteranopia (no green cones) | #5C7DC1 | 0.048 |
| Tritanopia (no blue cones) | #00989E | 0.080 |
| Achromatopsia (no color) | #838383 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #308AC2
#308AC2
oklch(60.6% 0.119 240.6)
- #B56F2D
#B56F2D
oklch(60.6% 0.119 60.3)
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 #308AC2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.023
- Cool Blue #4984B8 ΔE 0.024
- Steel Blue #4682B4 ΔE 0.029
- Blue NCS #118AB2 ΔE 0.030
- Off Blue #5684AE ΔE 0.040
- Dusty Blue #5A86AD ΔE 0.043
- Faded Blue #658CBB ΔE 0.048
- Windows Blue #3778BF ΔE 0.050
Use #308AC2 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.