#3985AF
Closest named color: Steel Blue (#4682B4). oklch(58.7% 0.098 236.1), rgb(57, 133, 175).
Aa
Black text reads best on this color (5.14:1).
About this color
#3985AF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.098 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.017 away. Black text reads best on it, at 5.14:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 5.14:1 |
| White text | 4.07:1 |
Values
| HEX | #3985AF |
| RGB | rgb(57, 133, 175) |
| HSL | hsl(201, 51%, 45%) |
| OKLCH | oklch(58.7% 0.098 236.1) |
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 #3985AF | 4.07:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #3985AF | 5.14:1 | AA | Lc 36.4 | Non-text elements, placeholder text |
| #3985AF text on white | 4.07:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #3985AF text on black | 5.14:1 | AA | Lc -33.9 | 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 600.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CBDCE7
oklch(88.5% 0.024 236)
-
Step 300
300
#A6C6DA
oklch(81% 0.045 235.5)
-
Step 400
400
#75A8C7
oklch(70.7% 0.071 235.8)
-
Step 500
500
#4E92B9
oklch(63.1% 0.091 235.8)
-
Step 600
600 (this color)
#3985AF
oklch(58.7% 0.098 236.1)
-
Step 700
700
#20688D
oklch(49.1% 0.091 235.8)
-
Step 800
800
#1D5573
oklch(42.7% 0.076 236.1)
-
Step 900
900
#1F465D
oklch(37.7% 0.059 237.1)
-
Step 950
950
#132936
oklch(26.9% 0.037 236.3)
#3985AF 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) | #7184B1 | 0.059 |
| Deuteranopia (no green cones) | #6179AE | 0.048 |
| Tritanopia (no blue cones) | #009093 | 0.066 |
| Achromatopsia (no color) | #7E7E7E | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3985AF
#3985AF
oklch(58.7% 0.098 236.1)
- #A96C3F
#A96C3F
oklch(58.7% 0.099 55.8)
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 #3985AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.017
- Blue NCS #118AB2 ΔE 0.021
- Cool Blue #4984B8 ΔE 0.021
- Off Blue #5684AE ΔE 0.026
- Dusty Blue #5A86AD ΔE 0.031
- Cerulean #457B9D ΔE 0.034
- Stormy Blue #507B9C ΔE 0.037
- Teal Blue #01889F ΔE 0.038
Use #3985AF 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.