#2F75AE
Closest named color: Flat Blue (#3C73A8). oklch(54.5% 0.113 246.6), rgb(47, 117, 174).
Aa
White text reads best on this color (4.91:1).
About this color
#2F75AE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.113 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Flat Blue (#3C73A8), ΔE 0.013 away. White text reads best on it, at 4.91:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Flat Blue (#3C73A8) |
| Black text | 4.27:1 |
| White text | 4.91:1 |
Values
| HEX | #2F75AE |
| RGB | rgb(47, 117, 174) |
| HSL | hsl(207, 57%, 43%) |
| OKLCH | oklch(54.5% 0.113 246.6) |
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 #2F75AE | 4.91:1 | AA | Lc -79.1 | Fine for body text |
| Black text on #2F75AE | 4.27:1 | AA large text | Lc 30.4 | Non-text elements, placeholder text |
| #2F75AE text on white | 4.91:1 | AA | Lc 73.7 | Content text, not long reading |
| #2F75AE text on black | 4.27:1 | AA large text | Lc -28.0 | 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
#A7C4E0
oklch(80.8% 0.051 247.5)
-
Step 400
400
#76A6D1
oklch(70.7% 0.082 246.3)
-
Step 500
500
#518FC5
oklch(63.1% 0.104 246.6)
-
Step 600
600 (this color)
#2F75AE
oklch(54.5% 0.113 246.6)
-
Step 700
700
#246599
oklch(49.1% 0.106 246.6)
-
Step 800
800
#20527C
oklch(42.6% 0.088 247.2)
-
Step 900
900
#204464
oklch(37.6% 0.069 247.6)
-
Step 950
950
#14283A
oklch(26.9% 0.043 247.2)
#2F75AE 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) | #5B77B0 | 0.045 |
| Deuteranopia (no green cones) | #496BAD | 0.034 |
| Tritanopia (no blue cones) | #008389 | 0.084 |
| Achromatopsia (no color) | #717171 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F75AE
#2F75AE
oklch(54.5% 0.113 246.6)
- #9C6115
#9C6115
oklch(54.6% 0.113 66.3)
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 #2F75AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Blue #3C73A8 ΔE 0.013
- Nice Blue #107AB0 ΔE 0.018
- Muted Blue #3B719F ΔE 0.024
- Windows Blue #3778BF ΔE 0.028
- French Blue #436BAD ΔE 0.030
- Dull Blue #49759C ΔE 0.035
- Mid Blue #276AB3 ΔE 0.035
- Ocean Blue #03719C ΔE 0.038
Use #2F75AE 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.