#3FA8CC
Closest named color: Turquoise Blue (#06B1C4). oklch(68.6% 0.108 224.6), rgb(63, 168, 204).
Aa
Black text reads best on this color (7.68:1).
About this color
#3FA8CC is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.108 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.035 away. Black text reads best on it, at 7.68:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.68:1 |
| White text | 2.73:1 |
Values
| HEX | #3FA8CC |
| RGB | rgb(63, 168, 204) |
| HSL | hsl(195, 58%, 52%) |
| OKLCH | oklch(68.6% 0.108 224.6) |
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 #3FA8CC | 2.73:1 | Fails | Lc -57.8 | Large or bold text, headings |
| Black text on #3FA8CC | 7.68:1 | AAA | Lc 51.5 | Large or bold text, headings |
| #3FA8CC text on white | 2.73:1 | Fails | Lc 52.6 | Large or bold text, headings |
| #3FA8CC text on black | 7.68:1 | AAA | Lc -49.3 | 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 400.
-
Step 50
50
#EFF7FA
oklch(97.1% 0.009 222.1)
-
Step 100
100
#DDEDF4
oklch(93.6% 0.019 225.7)
-
Step 200
200
#C0DFEC
oklch(88.5% 0.037 225)
-
Step 300
300
#91CBE1
oklch(81% 0.067 223.5)
-
Step 400
400 (this color)
#3FA8CC
oklch(68.6% 0.108 224.6)
-
Step 500
500
#0098BF
oklch(63.2% 0.119 224.4)
-
Step 600
600
#007FA1
oklch(55.5% 0.105 225)
-
Step 700
700
#006B88
oklch(49.1% 0.093 224.9)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900
#00495E
oklch(37.7% 0.071 225)
-
Step 950
950
#002B39
oklch(26.9% 0.051 225.5)
#3FA8CC 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) | #94A4CE | 0.084 |
| Deuteranopia (no green cones) | #8096CC | 0.074 |
| Tritanopia (no blue cones) | #00B3B4 | 0.058 |
| Achromatopsia (no color) | #9C9C9C | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3FA8CC
#3FA8CC
oklch(68.6% 0.108 224.6)
- #D28461
#D28461
oklch(68.7% 0.108 44.7)
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 #3FA8CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.035
- Greyblue #77A1B5 ΔE 0.054
- Cadet Blue #5F9EA0 ΔE 0.064
- Light Sea Green #20B2AA ΔE 0.068
- Bluegrey #85A3B2 ΔE 0.069
- Bluey Grey #89A0B0 ΔE 0.075
- Faded Blue #658CBB ΔE 0.077
- Topaz #13BBAF ΔE 0.081
Use #3FA8CC 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.