#2F619B
Closest named color: Denim Blue (#3B5B92). oklch(48.7% 0.108 253.8), rgb(47, 97, 155).
Aa
White text reads best on this color (6.35:1).
About this color
#2F619B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.108 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.021 away. White text reads best on it, at 6.35:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.30:1 |
| White text | 6.35:1 |
Values
| HEX | #2F619B |
| RGB | rgb(47, 97, 155) |
| HSL | hsl(212, 53%, 40%) |
| OKLCH | oklch(48.7% 0.108 253.8) |
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 #2F619B | 6.35:1 | AA | Lc -86.5 | Fine for body text |
| Black text on #2F619B | 3.30:1 | AA large text | Lc 22.7 | Dividers and decoration only |
| #2F619B text on white | 6.35:1 | AA | Lc 81.4 | Fine for body text |
| #2F619B text on black | 3.30:1 | AA large text | Lc -20.5 | 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 700.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CCDBEC
oklch(88.5% 0.029 251.5)
-
Step 300
300
#AAC3E2
oklch(80.9% 0.052 253.9)
-
Step 400
400
#7CA4D4
oklch(70.8% 0.083 253.4)
-
Step 500
500
#5A8CC9
oklch(63.1% 0.107 254.1)
-
Step 600
600
#3E75B6
oklch(55.6% 0.117 254)
-
Step 700
700 (this color)
#2F619B
oklch(48.7% 0.108 253.8)
-
Step 800
800
#29507F
oklch(42.6% 0.09 254.3)
-
Step 900
900
#264366
oklch(37.8% 0.07 254.1)
-
Step 950
950
#17273C
oklch(27% 0.045 255.6)
#2F619B 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) | #47659D | 0.029 |
| Deuteranopia (no green cones) | #375B9A | 0.017 |
| Tritanopia (no blue cones) | #006E76 | 0.084 |
| Achromatopsia (no color) | #5F5F5F | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F619B
#2F619B
oklch(48.7% 0.108 253.8)
- #825500
#825500
oklch(48.7% 0.103 73.8)
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 #2F619B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.021
- Dusky Blue #475F94 ΔE 0.026
- Denim #3B638C ΔE 0.028
- Peacock Blue #016795 ΔE 0.030
- Light Navy Blue #2E5A88 ΔE 0.034
- Mid Blue #276AB3 ΔE 0.042
- French Blue #436BAD ΔE 0.045
- Dusk Blue #26538D ΔE 0.046
Use #2F619B 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.