#3D9DEC
Closest named color: Chefchaouen Blue (#4895EF). oklch(67.6% 0.147 247.2), rgb(61, 157, 236).
Aa
Black text reads best on this color (7.23:1).
About this color
#3D9DEC is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.147 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.023 away. Black text reads best on it, at 7.23:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.23:1 |
| White text | 2.90:1 |
Values
| HEX | #3D9DEC |
| RGB | rgb(61, 157, 236) |
| HSL | hsl(207, 82%, 58%) |
| OKLCH | oklch(67.6% 0.147 247.2) |
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 #3D9DEC | 2.90:1 | Fails | Lc -60.3 | Content text, not long reading |
| Black text on #3D9DEC | 7.23:1 | AAA | Lc 49.0 | Large or bold text, headings |
| #3D9DEC text on white | 2.90:1 | Fails | Lc 55.0 | Large or bold text, headings |
| #3D9DEC text on black | 7.23:1 | AAA | Lc -46.8 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF6FE
oklch(97% 0.013 251.6)
-
Step 100
100
#DCECFB
oklch(93.6% 0.027 246.3)
-
Step 200
200
#BFDDFA
oklch(88.5% 0.051 247.5)
-
Step 300
300
#90C7F9
oklch(81% 0.091 246.6)
-
Step 400
400 (this color)
#3D9DEC
oklch(67.6% 0.147 247.2)
-
Step 500
500
#008EE8
oklch(63% 0.168 247.5)
-
Step 600
600
#0078C4
oklch(55.7% 0.147 247.1)
-
Step 700
700
#0064A5
oklch(49% 0.13 247.2)
-
Step 800
800
#005289
oklch(42.7% 0.113 247.3)
-
Step 900
900
#004473
oklch(37.7% 0.1 247.4)
-
Step 950
950
#002847
oklch(27% 0.072 247.4)
#3D9DEC 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) | #79A0EF | 0.056 |
| Deuteranopia (no green cones) | #6090EA | 0.041 |
| Tritanopia (no blue cones) | #00B0BA | 0.106 |
| Achromatopsia (no color) | #979797 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D9DEC
#3D9DEC
oklch(67.6% 0.147 247.2)
- #D2820A
#D2820A
oklch(67.6% 0.147 67)
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 #3D9DEC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.023
- Cornflower Blue #6495ED ΔE 0.036
- Dark Sky Blue #448EE4 ΔE 0.040
- Dodger Blue #1E90FF ΔE 0.052
- Soft Blue #6488EA ΔE 0.060
- Water Blue #0E87CC ΔE 0.079
- Faded Blue #658CBB ΔE 0.079
- Periwinkle Blue #8F99FB ΔE 0.086
Use #3D9DEC 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.