#3187F2
Closest named color: Dodger Blue (#1E90FF). oklch(62.8% 0.18 256), rgb(49, 135, 242).
Aa
Black text reads best on this color (5.87:1).
About this color
#3187F2 is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.180 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dodger Blue (#1E90FF), ΔE 0.028 away. Black text reads best on it, at 5.87:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.180) |
| Temperature | cool |
| Nearest name | Dodger Blue (#1E90FF) |
| Black text | 5.87:1 |
| White text | 3.57:1 |
Values
| HEX | #3187F2 |
| RGB | rgb(49, 135, 242) |
| HSL | hsl(213, 88%, 57%) |
| OKLCH | oklch(62.8% 0.18 256) |
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 #3187F2 | 3.57:1 | AA large text | Lc -68.3 | Content text, not long reading |
| Black text on #3187F2 | 5.87:1 | AA | Lc 41.3 | Non-text elements, placeholder text |
| #3187F2 text on white | 3.57:1 | AA large text | Lc 62.8 | Content text, not long reading |
| #3187F2 text on black | 5.87:1 | AA | Lc -38.9 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C5DBFA
oklch(88.5% 0.049 256.9)
-
Step 300
300
#9BC3F9
oklch(80.8% 0.088 256.1)
-
Step 400
400
#63A2F7
oklch(70.7% 0.141 256.3)
-
Step 500
500 (this color)
#3187F2
oklch(62.8% 0.18 256)
-
Step 600
600
#006FDF
oklch(55.6% 0.191 256.1)
-
Step 700
700
#005DBD
oklch(49.1% 0.169 256.1)
-
Step 800
800
#004C9C
oklch(42.7% 0.146 256)
-
Step 900
900
#0C407E
oklch(37.7% 0.117 256.1)
-
Step 950
950
#0A264A
oklch(27% 0.075 256.3)
#3187F2 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) | #4F91F6 | 0.038 |
| Deuteranopia (no green cones) | #247FF0 | 0.023 |
| Tritanopia (no blue cones) | #00A1B1 | 0.137 |
| Achromatopsia (no color) | #878787 | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3187F2
#3187F2
oklch(62.8% 0.18 256)
- #B57B00
#B57B00
oklch(62.7% 0.132 75.9)
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 #3187F2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dodger Blue #1E90FF ΔE 0.028
- Dark Sky Blue #448EE4 ΔE 0.034
- Clear Blue #247AFD ΔE 0.040
- Chefchaouen Blue #4895EF ΔE 0.044
- Soft Blue #6488EA ΔE 0.046
- Cornflower #6A79F7 ΔE 0.059
- Water Blue #0E87CC ΔE 0.061
- Cornflower Blue #6495ED ΔE 0.062
Use #3187F2 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.