#3D89CC
Closest named color: Water Blue (#0E87CC). oklch(61.3% 0.127 248.1), rgb(61, 137, 204).
Aa
Black text reads best on this color (5.64:1).
About this color
#3D89CC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.127 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.024 away. Black text reads best on it, at 5.64:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.64:1 |
| White text | 3.71:1 |
Values
| HEX | #3D89CC |
| RGB | rgb(61, 137, 204) |
| HSL | hsl(208, 58%, 52%) |
| OKLCH | oklch(61.3% 0.127 248.1) |
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 #3D89CC | 3.71:1 | AA large text | Lc -69.9 | Content text, not long reading |
| Black text on #3D89CC | 5.64:1 | AA | Lc 39.6 | Non-text elements, placeholder text |
| #3D89CC text on white | 3.71:1 | AA large text | Lc 64.5 | Content text, not long reading |
| #3D89CC text on black | 5.64:1 | AA | Lc -37.2 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C8DCEF
oklch(88.5% 0.034 246.8)
-
Step 300
300
#A2C5E7
oklch(80.9% 0.061 247.8)
-
Step 400
400
#6DA6DC
oklch(70.7% 0.1 248.1)
-
Step 500
500 (this color)
#3D89CC
oklch(61.3% 0.127 248.1)
-
Step 600
600
#1D77BF
oklch(55.5% 0.138 248.3)
-
Step 700
700
#0B64A5
oklch(49.1% 0.128 248.1)
-
Step 800
800
#105286
oklch(42.8% 0.106 248.2)
-
Step 900
900
#17446B
oklch(37.7% 0.083 248.3)
-
Step 950
950
#0F283F
oklch(27% 0.053 248.7)
#3D89CC 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) | #6B8CCF | 0.048 |
| Deuteranopia (no green cones) | #577ECB | 0.035 |
| Tritanopia (no blue cones) | #0099A1 | 0.094 |
| Achromatopsia (no color) | #848484 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D89CC
#3D89CC
oklch(61.3% 0.127 248.1)
- #B57419
#B57419
oklch(61.4% 0.126 68.5)
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 #3D89CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.024
- Cool Blue #4984B8 ΔE 0.031
- Steel Blue #4682B4 ΔE 0.037
- Dark Sky Blue #448EE4 ΔE 0.038
- Faded Blue #658CBB ΔE 0.047
- Off Blue #5684AE ΔE 0.047
- Blue NCS #118AB2 ΔE 0.049
- Windows Blue #3778BF ΔE 0.050
Use #3D89CC 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.