#2F75AC
Closest named color: Flat Blue (#3C73A8). oklch(54.4% 0.111 245.7), rgb(47, 117, 172).
Aa
White text reads best on this color (4.92:1).
About this color
#2F75AC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.111 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Flat Blue (#3C73A8), ΔE 0.011 away. White text reads best on it, at 4.92:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Flat Blue (#3C73A8) |
| Black text | 4.26:1 |
| White text | 4.92:1 |
Values
| HEX | #2F75AC |
| RGB | rgb(47, 117, 172) |
| HSL | hsl(206, 57%, 43%) |
| OKLCH | oklch(54.4% 0.111 245.7) |
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 #2F75AC | 4.92:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #2F75AC | 4.26:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #2F75AC text on white | 4.92:1 | AA | Lc 73.8 | Content text, not long reading |
| #2F75AC text on black | 4.26:1 | AA large text | Lc -27.9 | Dividers and decoration only |
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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CBDBEB
oklch(88.4% 0.028 248.1)
-
Step 300
300
#A7C5DF
oklch(81% 0.049 244.6)
-
Step 400
400
#76A6D0
oklch(70.7% 0.08 245.7)
-
Step 500
500
#518FC3
oklch(63% 0.102 245.7)
-
Step 600
600 (this color)
#2F75AC
oklch(54.4% 0.111 245.7)
-
Step 700
700
#256597
oklch(49.1% 0.103 245.9)
-
Step 800
800
#20537B
oklch(42.8% 0.086 245.5)
-
Step 900
900
#204563
oklch(37.8% 0.067 245.4)
-
Step 950
950
#14283A
oklch(26.9% 0.043 247.2)
#2F75AC 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) | #5C77AE | 0.046 |
| Deuteranopia (no green cones) | #4B6BAB | 0.035 |
| Tritanopia (no blue cones) | #008289 | 0.079 |
| Achromatopsia (no color) | #707070 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F75AC
#2F75AC
oklch(54.4% 0.111 245.7)
- #9B611A
#9B611A
oklch(54.5% 0.111 65.8)
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 #2F75AC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Blue #3C73A8 ΔE 0.011
- Nice Blue #107AB0 ΔE 0.018
- Muted Blue #3B719F ΔE 0.022
- Windows Blue #3778BF ΔE 0.031
- French Blue #436BAD ΔE 0.031
- Dull Blue #49759C ΔE 0.033
- Ocean Blue #03719C ΔE 0.035
- Mid Blue #276AB3 ΔE 0.037
Use #2F75AC 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.