#3A88AE
Closest named color: Blue NCS (#118AB2). oklch(59.5% 0.095 232.8), rgb(58, 136, 174).
Aa
Black text reads best on this color (5.31:1).
About this color
#3A88AE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.095 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.019 away. Black text reads best on it, at 5.31:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.31:1 |
| White text | 3.95:1 |
Values
| HEX | #3A88AE |
| RGB | rgb(58, 136, 174) |
| HSL | hsl(200, 50%, 45%) |
| OKLCH | oklch(59.5% 0.095 232.8) |
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 #3A88AE | 3.95:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #3A88AE | 5.31:1 | AA | Lc 37.4 | Non-text elements, placeholder text |
| #3A88AE text on white | 3.95:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #3A88AE text on black | 5.31:1 | AA | Lc -35.0 | 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
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C9DDE8
oklch(88.6% 0.026 231.7)
-
Step 300
300
#A4C6DA
oklch(80.8% 0.046 233.9)
-
Step 400
400
#70A9C8
oklch(70.7% 0.075 233.1)
-
Step 500
500 (this color)
#3A88AE
oklch(59.5% 0.095 232.8)
-
Step 600
600
#207DA6
oklch(55.6% 0.104 232.8)
-
Step 700
700
#0F698E
oklch(49.1% 0.096 232.8)
-
Step 800
800
#135673
oklch(42.7% 0.079 232.3)
-
Step 900
900
#19475D
oklch(37.7% 0.062 232.6)
-
Step 950
950
#102A37
oklch(27.1% 0.04 232.6)
#3A88AE 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) | #7587B0 | 0.062 |
| Deuteranopia (no green cones) | #657BAD | 0.053 |
| Tritanopia (no blue cones) | #009295 | 0.060 |
| Achromatopsia (no color) | #808080 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A88AE
#3A88AE
oklch(59.5% 0.095 232.8)
- #AB6E46
#AB6E46
oklch(59.5% 0.095 53.2)
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 #3A88AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.019
- Steel Blue #4682B4 ΔE 0.023
- Cool Blue #4984B8 ΔE 0.025
- Off Blue #5684AE ΔE 0.026
- Dusty Blue #5A86AD ΔE 0.029
- Teal Blue #01889F ΔE 0.035
- Cerulean #457B9D ΔE 0.040
- Stormy Blue #507B9C ΔE 0.041
Use #3A88AE 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.