#308FC2
Closest named color: Blue NCS (#118AB2). oklch(61.8% 0.116 236.8), rgb(48, 143, 194).
Aa
Black text reads best on this color (5.83:1).
About this color
#308FC2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.116 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.031 away. Black text reads best on it, at 5.83:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.83:1 |
| White text | 3.59:1 |
Values
| HEX | #308FC2 |
| RGB | rgb(48, 143, 194) |
| HSL | hsl(201, 60%, 47%) |
| OKLCH | oklch(61.8% 0.116 236.8) |
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 #308FC2 | 3.59:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #308FC2 | 5.83:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #308FC2 text on white | 3.59:1 | AA large text | Lc 63.2 | Content text, not long reading |
| #308FC2 text on black | 5.83:1 | AA | Lc -38.4 | 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
#C7DDEC
oklch(88.6% 0.031 237.6)
-
Step 300
300
#9FC7E1
oklch(81% 0.056 236.9)
-
Step 400
400
#67A9D2
oklch(70.7% 0.09 237.2)
-
Step 500
500 (this color)
#308FC2
oklch(61.8% 0.116 236.8)
-
Step 600
600
#007CB1
oklch(55.6% 0.122 237.2)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#0C4764
oklch(37.7% 0.075 236.2)
-
Step 950
950
#0B2A3B
oklch(27.1% 0.048 236.5)
#308FC2 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) | #778FC4 | 0.067 |
| Deuteranopia (no green cones) | #6381C1 | 0.055 |
| Tritanopia (no blue cones) | #009CA1 | 0.074 |
| Achromatopsia (no color) | #878787 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #308FC2
#308FC2
oklch(61.8% 0.116 236.8)
- #B97239
#B97239
oklch(61.8% 0.115 57)
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 #308FC2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.031
- Cool Blue #4984B8 ΔE 0.033
- Water Blue #0E87CC ΔE 0.034
- Steel Blue #4682B4 ΔE 0.038
- Off Blue #5684AE ΔE 0.043
- Dusty Blue #5A86AD ΔE 0.044
- Faded Blue #658CBB ΔE 0.045
- Dark Sky Blue #448EE4 ΔE 0.056
Use #308FC2 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.