#2D84BF
Closest named color: Water Blue (#0E87CC). oklch(59% 0.121 242.9), rgb(45, 132, 191).
Aa
Black text reads best on this color (5.16:1).
About this color
#2D84BF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.121 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.021 away. Black text reads best on it, at 5.16:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.16:1 |
| White text | 4.06:1 |
Values
| HEX | #2D84BF |
| RGB | rgb(45, 132, 191) |
| HSL | hsl(204, 62%, 46%) |
| OKLCH | oklch(59% 0.121 242.9) |
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 #2D84BF | 4.06:1 | AA large text | Lc -73.0 | Content text, not long reading |
| Black text on #2D84BF | 5.16:1 | AA | Lc 36.6 | Non-text elements, placeholder text |
| #2D84BF text on white | 4.06:1 | AA large text | Lc 67.5 | Content text, not long reading |
| #2D84BF text on black | 5.16:1 | AA | Lc -34.1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200
#C9DCEC
oklch(88.5% 0.03 243.4)
-
Step 300
300
#A3C5E2
oklch(80.8% 0.055 244.3)
-
Step 400
400
#6FA7D3
oklch(70.7% 0.087 243.1)
-
Step 500
500
#4591C7
oklch(63.2% 0.111 242.3)
-
Step 600
600 (this color)
#2D84BF
oklch(59% 0.121 242.9)
-
Step 700
700
#0F669B
oklch(49% 0.113 243.1)
-
Step 800
800
#12547E
oklch(42.8% 0.094 242.6)
-
Step 900
900
#184565
oklch(37.6% 0.073 243.3)
-
Step 950
950
#10293B
oklch(27.1% 0.046 242.4)
#2D84BF 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) | #6985C2 | 0.057 |
| Deuteranopia (no green cones) | #5478BE | 0.043 |
| Tritanopia (no blue cones) | #009399 | 0.085 |
| Achromatopsia (no color) | #7E7E7E | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D84BF
#2D84BF
oklch(59% 0.121 242.9)
- #AF6B20
#AF6B20
oklch(59% 0.121 63.1)
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 #2D84BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.021
- Cool Blue #4984B8 ΔE 0.023
- Steel Blue #4682B4 ΔE 0.023
- Blue NCS #118AB2 ΔE 0.032
- Windows Blue #3778BF ΔE 0.034
- Nice Blue #107AB0 ΔE 0.039
- Off Blue #5684AE ΔE 0.041
- Dusty Blue #5A86AD ΔE 0.047
Use #2D84BF 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.