#2D5AC9
Closest named color: Warm Blue (#4B57DB). oklch(50.3% 0.18 264.2), rgb(45, 90, 201).
Aa
White text reads best on this color (6.14:1).
About this color
#2D5AC9 is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.180 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Warm Blue (#4B57DB), ΔE 0.043 away. White text reads best on it, at 6.14:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.180) |
| Temperature | cool |
| Nearest name | Warm Blue (#4B57DB) |
| Black text | 3.41:1 |
| White text | 6.14:1 |
Values
| HEX | #2D5AC9 |
| RGB | rgb(45, 90, 201) |
| HSL | hsl(223, 63%, 48%) |
| OKLCH | oklch(50.3% 0.18 264.2) |
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 #2D5AC9 | 6.14:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #2D5AC9 | 3.41:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #2D5AC9 text on white | 6.14:1 | AA | Lc 80.1 | Fine for body text |
| #2D5AC9 text on black | 3.41:1 | AA large text | Lc -21.7 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C9DAFA
oklch(88.6% 0.048 263.1)
-
Step 300
300
#A4C0FA
oklch(80.8% 0.088 264.5)
-
Step 400
400
#749EF7
oklch(70.7% 0.139 264)
-
Step 500
500
#5182F4
oklch(63% 0.179 264.4)
-
Step 600
600
#3769E3
oklch(55.7% 0.194 264.2)
-
Step 700
700 (this color)
#2D5AC9
oklch(50.3% 0.18 264.2)
-
Step 800
800
#23479F
oklch(42.6% 0.149 264.2)
-
Step 900
900
#213D7E
oklch(37.7% 0.115 264.1)
-
Step 950
950
#14244A
oklch(27% 0.074 264.7)
#2D5AC9 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) | #0069CD | 0.039 |
| Deuteranopia (no green cones) | #005BC7 | 0.022 |
| Tritanopia (no blue cones) | #007589 | 0.139 |
| Achromatopsia (no color) | #626262 | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D5AC9
#2D5AC9
oklch(50.3% 0.18 264.2)
- #805E00
#805E00
oklch(50.4% 0.103 83.9)
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 #2D5AC9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Warm Blue #4B57DB ΔE 0.043
- Azul #1D5DEC ΔE 0.054
- Royal Blue #4169E1 ΔE 0.058
- Mid Blue #276AB3 ΔE 0.058
- Blue Blue #2242C7 ΔE 0.059
- Iris #6258C4 ΔE 0.064
- Neon Blue #4361EE ΔE 0.065
- Cerulean Blue #056EEE ΔE 0.072
Use #2D5AC9 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.