#3D88AA
Closest named color: Blue NCS (#118AB2). oklch(59.4% 0.09 230.5), rgb(61, 136, 170).
Aa
Black text reads best on this color (5.30:1).
About this color
#3D88AA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.090 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.022 away. Black text reads best on it, at 5.30:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.30:1 |
| White text | 3.96:1 |
Values
| HEX | #3D88AA |
| RGB | rgb(61, 136, 170) |
| HSL | hsl(199, 47%, 45%) |
| OKLCH | oklch(59.4% 0.09 230.5) |
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 #3D88AA | 3.96:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #3D88AA | 5.30:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #3D88AA text on white | 3.96:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #3D88AA text on black | 5.30:1 | AA | Lc -34.9 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#CADDE6
oklch(88.6% 0.024 227.8)
-
Step 300
300
#A5C6D8
oklch(80.8% 0.044 231.9)
-
Step 400
400
#72A9C5
oklch(70.7% 0.071 231.2)
-
Step 500
500 (this color)
#3D88AA
oklch(59.4% 0.09 230.5)
-
Step 600
600
#257DA2
oklch(55.6% 0.098 230.8)
-
Step 700
700
#16698B
oklch(49% 0.092 231.4)
-
Step 800
800
#175670
oklch(42.7% 0.075 230.3)
-
Step 900
900
#1B475B
oklch(37.7% 0.059 230.9)
-
Step 950
950
#112A35
oklch(27.1% 0.037 229)
#3D88AA 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) | #7786AC | 0.063 |
| Deuteranopia (no green cones) | #687BAA | 0.054 |
| Tritanopia (no blue cones) | #009193 | 0.057 |
| Achromatopsia (no color) | #808080 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D88AA
#3D88AA
oklch(59.4% 0.09 230.5)
- #A96E4B
#A96E4B
oklch(59.3% 0.09 51)
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 #3D88AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.022
- Off Blue #5684AE ΔE 0.026
- Steel Blue #4682B4 ΔE 0.027
- Dusty Blue #5A86AD ΔE 0.028
- Cool Blue #4984B8 ΔE 0.030
- Teal Blue #01889F ΔE 0.033
- Cerulean #457B9D ΔE 0.038
- Stormy Blue #507B9C ΔE 0.039
Use #3D88AA 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.