#045AC8
Closest named color: Blue Blue (#2242C7). oklch(49.4% 0.186 258.7), rgb(4, 90, 200).
Aa
White text reads best on this color (6.36:1).
About this color
#045AC8 is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.186 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.054 away. White text reads best on it, at 6.36:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.186) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.30:1 |
| White text | 6.36:1 |
Values
| HEX | #045AC8 |
| RGB | rgb(4, 90, 200) |
| HSL | hsl(214, 96%, 40%) |
| OKLCH | oklch(49.4% 0.186 258.7) |
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 #045AC8 | 6.36:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #045AC8 | 3.30:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #045AC8 text on white | 6.36:1 | AA | Lc 80.8 | Fine for body text |
| #045AC8 text on black | 3.30:1 | AA large text | Lc -21.1 | 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
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DBFB
oklch(88.6% 0.05 258.7)
-
Step 300
300
#9DC2FB
oklch(80.8% 0.091 258.9)
-
Step 400
400
#67A1F9
oklch(70.8% 0.143 258.5)
-
Step 500
500
#3B86F6
oklch(63.1% 0.183 258.6)
-
Step 600
600
#146CE5
oklch(55.6% 0.2 258.7)
-
Step 700
700 (this color)
#045AC8
oklch(49.4% 0.186 258.7)
-
Step 800
800
#0A4AA1
oklch(42.8% 0.154 258.6)
-
Step 900
900
#133F80
oklch(37.8% 0.12 258.7)
-
Step 950
950
#0D254B
oklch(27% 0.077 259.3)
#045AC8 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) | #0068CC | 0.036 |
| Deuteranopia (no green cones) | #0058C6 | 0.006 |
| Tritanopia (no blue cones) | #007688 | 0.141 |
| Achromatopsia (no color) | #5F5F5F | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #045AC8
#045AC8
oklch(49.4% 0.186 258.7)
- #805900
#805900
oklch(49.3% 0.102 79)
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 #045AC8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.054
- Azul #1D5DEC ΔE 0.058
- Mid Blue #276AB3 ΔE 0.061
- Warm Blue #4B57DB ΔE 0.061
- Royal Blue #4169E1 ΔE 0.071
- Cerulean Blue #056EEE ΔE 0.076
- Neon Blue #4361EE ΔE 0.077
- Majorelle Blue #3F37C9 ΔE 0.078
Use #045AC8 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.