#3D8ECA
Closest named color: Water Blue (#0E87CC). oklch(62.4% 0.12 244), rgb(61, 142, 202).
Aa
Black text reads best on this color (5.92:1).
About this color
#3D8ECA is a medium-light, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.120 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.033 away. Black text reads best on it, at 5.92:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.92:1 |
| White text | 3.54:1 |
Values
| HEX | #3D8ECA |
| RGB | rgb(61, 142, 202) |
| HSL | hsl(206, 57%, 52%) |
| OKLCH | oklch(62.4% 0.12 244) |
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 #3D8ECA | 3.54:1 | AA large text | Lc -68.2 | Content text, not long reading |
| Black text on #3D8ECA | 5.92:1 | AA | Lc 41.3 | Non-text elements, placeholder text |
| #3D8ECA text on white | 3.54:1 | AA large text | Lc 62.8 | Content text, not long reading |
| #3D8ECA text on black | 5.92:1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCEE
oklch(88.5% 0.033 245.3)
-
Step 300
300
#A1C6E4
oklch(81% 0.058 243)
-
Step 400
400
#6CA7D7
oklch(70.7% 0.094 244.2)
-
Step 500
500 (this color)
#3D8ECA
oklch(62.4% 0.12 244)
-
Step 600
600
#1479B9
oklch(55.5% 0.13 244)
-
Step 700
700
#0066A0
oklch(49.2% 0.121 244)
-
Step 800
800
#0A5381
oklch(42.6% 0.1 244)
-
Step 900
900
#154568
oklch(37.7% 0.079 244.5)
-
Step 950
950
#0E293D
oklch(27.1% 0.05 243.6)
#3D8ECA 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) | #738FCD | 0.055 |
| Deuteranopia (no green cones) | #5F82C9 | 0.042 |
| Tritanopia (no blue cones) | #009DA3 | 0.087 |
| Achromatopsia (no color) | #888888 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D8ECA
#3D8ECA
oklch(62.4% 0.12 244)
- #B9762D
#B9762D
oklch(62.4% 0.12 64.2)
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 #3D8ECA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.033
- Cool Blue #4984B8 ΔE 0.034
- Faded Blue #658CBB ΔE 0.041
- Dark Sky Blue #448EE4 ΔE 0.041
- Steel Blue #4682B4 ΔE 0.041
- Blue NCS #118AB2 ΔE 0.046
- Off Blue #5684AE ΔE 0.047
- Dusty Blue #5A86AD ΔE 0.048
Use #3D8ECA 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.