#3D9ECD
Closest named color: Faded Blue (#658CBB). oklch(66.3% 0.113 233.3), rgb(61, 158, 205).
Aa
Black text reads best on this color (6.97:1).
About this color
#3D9ECD is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.113 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.056 away. Black text reads best on it, at 6.97:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.97:1 |
| White text | 3.01:1 |
Values
| HEX | #3D9ECD |
| RGB | rgb(61, 158, 205) |
| HSL | hsl(200, 59%, 52%) |
| OKLCH | oklch(66.3% 0.113 233.3) |
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 #3D9ECD | 3.01:1 | AA large text | Lc -61.9 | Content text, not long reading |
| Black text on #3D9ECD | 6.97:1 | AA | Lc 47.5 | Large or bold text, headings |
| #3D9ECD text on white | 3.01:1 | AA large text | Lc 56.5 | Large or bold text, headings |
| #3D9ECD text on black | 6.97:1 | AA | Lc -45.2 | 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 500.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C6DDEB
oklch(88.5% 0.031 234.5)
-
Step 300
300
#9EC7DF
oklch(80.8% 0.055 234)
-
Step 400
400
#65AACF
oklch(70.7% 0.088 233.4)
-
Step 500
500 (this color)
#3D9ECD
oklch(66.3% 0.113 233.3)
-
Step 600
600
#007DAC
oklch(55.5% 0.116 233.8)
-
Step 700
700
#006991
oklch(49% 0.102 233.6)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900
#094762
oklch(37.6% 0.074 233.7)
-
Step 950
950
#0A2A3A
oklch(27% 0.047 234.3)
#3D9ECD 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) | #879CCF | 0.072 |
| Deuteranopia (no green cones) | #738ECC | 0.062 |
| Tritanopia (no blue cones) | #00ABAE | 0.072 |
| Achromatopsia (no color) | #959595 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D9ECD
#3D9ECD
oklch(66.3% 0.113 233.3)
- #C97E4D
#C97E4D
oklch(66.2% 0.113 52.7)
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 #3D9ECD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.056
- Turquoise Blue #06B1C4 ΔE 0.061
- Dark Sky Blue #448EE4 ΔE 0.063
- Chefchaouen Blue #4895EF ΔE 0.063
- Greyblue #77A1B5 ΔE 0.063
- Cornflower Blue #6495ED ΔE 0.068
- Cadet Blue #5F9EA0 ΔE 0.071
- Blue NCS #118AB2 ΔE 0.071
Use #3D9ECD 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.